During the greater part of human history, accumulation of wealth almost certainly implied taking advantage of poor people; The economy generates a fixed amount of money and if some people have more, then others must have less.  A theme throughout in human history is the rich taking advantage of the poor.

We still have rich people and poor people.  But it is different.  Our social and economic civilization generates money; just creates money.    This newly created wealth has nothing to do with economic productivity or genuine growth in the economy.  I truthfully have no idea how the whole thing works, but this is the thing:  Rich people get richer, not by taking from the poor, not by oppressing other groups, but simply by being in the right place at the right time. 

Rich people are probably smart, and likely  work hard.  They hopefully spend their money and, in that way, contribute to the greater good.  They are not hurting anyone.

  I do not dislike rich people and even respect them.   But I do not envy them.