I wasn't speaking of the driver's car, that's presumably going to get damaged anyway. I was speaking of another person's property, which in the hypothetical situation would get damaged if the driver swerves to avoid the pedestrian, in which case he is making an ethical choice, not a charitable choice.
As to the former, the preservation of human life is the utmost moral imperative by basic instinct for most people. That doesn't make it an absolute or a constant, and that doesn't make it logically correct, but when speaking in terms of common ethics I believe it to be true. If you want a logical argument, here it is: personal property cannot exist without a person - if there are no human beings there is no property, only objects of no special significance. If without human life there are no property rights, then preservation of property rights is contingent on preservation of life and thus the higher moral imperative in a situation where there must be a choice between the two. Killing, or acting in a fashion that will directly result in another's death, in order to protect property is fundamentally flawed.
Working of course from the basic assumption that all human life holds equal value - if you think the beggar child is less intrinsically valuable than the baker then you may argue that the imperative to protect the right to the loaf of bread is greater because the loaf of bread belongs to a higher class of person whos rights wholly outweigh any of the lower class. That kind of cast system in itself violates fundamental property rights though, since those rights aren't equally distributed.
From a practical standpoint, preservation of human life makes sense. The contribution and potential of an individual can't be measured by his present status in free society - today's starving man may be tomorrow's brilliant inventor, or vice-versa. If life is extinguished arbitrarily for protection of property very little is gained by the property owner and very much is lost in terms of human potential. Maintaining a social net sufficient to preserve the health, well-being, and opportunity of all members of a society is not nearly as costly as a system where only a small class are allowed to flourish - even the privileged class suffers relative to its potential in a free and equal society. If you look at historical examples of feudal caste systems or modern dictatorships, the wealthy by privilege often have a lower quality of life compared to individuals in free societies. A person in a free society is given the baseline of health, education, and social opportunity necessary to do what he wishes with his life (at least in theory) - he is welcome to develop or squander his potential, and those who choose to develop themselves contribute to society as a whole through the product of their work, benefitting themselves as well as the wealthy and established who bear the cost of the social net. Most of the conveniences and delights wealthy people enjoy could not have existed if the people who invented and manufactured them had only the options their parents could afford out of pocket; health and education are expensive. It's nice to believe in some absolute Objectivist ideal where the wealthy, through enlightened self-interest, develop others through philanthropy and charity rather than through involuntary contribution enforced by the state but unfortunately a long history of evidence of the behavior of the privileged classes in different societies proves time and time again that they do not tend to do so.
If that all sounds like a tangent, it comes back around to to the bread loaf and the starving boy: a society that lets the child starve to save the baker's profits lets many people starve to protect the property rights of the few, either in cynical disregard or in the vain hope that the baker chooses to give the bread away for free, knowing that the child has some small chance of contributing to his own wealth and comfort later in life. In doing so it inadvertently harms itself as a whole and harms each individual by depriving them of the benefit of human potential and a broader number of people who can participate in society and the market; if nothing else the child may grow up to be a productive member of society and a productive member of society is a market participant who capitalizes resources and spends that capital in the market, contributing to its total volume.