Serious question - why do you think Rich people are rich?
Talent, dedication, ambition, and opportunity.
Followed up by this question - why should the people you think are rich be compelled to share their wealth with society?
To a reasonable extent, it's good (and necessary) for us all to contribute to the welfare of our nation. There are some things we cannot do as individuals that we can accomplish as a collective.
And one final question - define rich. How much income/wealth must an individual have before you consider them rich?
It really, really depends on location (cost of living), family situation, and a ton of other factors.
A rich person to me would be someone who can afford most any luxury they could desire while still being able to maintain a large pool of money with which to invest and save.
In my mind wealthy and rich are different.
I have friends I consider wealthy. They live in high cost of living areas but make several 100ks a year. Even these friends can't just go and spend as they please. They may have a Coach bag where I have a Nine West from Ross, but they still have to save and work on their finances to upgrade their home or buy a new vehicle just like any other family.
Rich to me is more money than you can reasonably conceive of spending in your lifetime, even if you try really hard (and I would!). Haha.
I don't expect to ever be rich. I enjoy money as much as the next person, but I'm not willing to make the sacrifices involved to become wealthy (ha, and I lack the talent and foresight necessary as well, LOL).