There’s a difference between taxation on property and taxation on yearly income (or, better, yearly profit). All profits made, by anybody, use community resources: roads, bridges and tunnels, the schools that trained their workers, the health care system that keeps more working-class people capable of putting in a solid day’s work, etc. There’s a huge infrastructure which is required to be in place in order for them to make their profit. It seems to me that those who make the most profit are using those resources more than others; a large corporation benefits very greatly by the education which has been provided by the state to its workers. It has more trucks delivering supplies and goods, causing wear-and-tear on the transportation system. It benefits from health care, because a larger pool of healthy workers means more job competition and ensures that the company has more potential employees to choose from.
I’m not for mugging people. But I don’t think it’s unreasonable to expect those who make more to spend more so that new up-and-comers or even just their own children and grandchildren will have a good infrastructure in which to attempt to prosper.