This is an interesting framing. What form of social organization would make it so that altruistic behavior was not a result of the whims of people in extant power structures? It seems tautologous that if someone has the power to allocate funds, they are the current beneficiary of the extant power structure.
Well, what do the alternatives look like? It's not like powerful politicians aren't self-aggrandizing; I'm sure many of them would like to effect structural change, but the structural change they want is probably pretty suspect. Nor is it the case that "political majorities", writ large, have an untarnished reputation for gentleness and decency.
As a society we can be changed by individual people. I would prefer to retain that, yes.
CGP Grey's, This video will make you angry really gives a lot of insight into the nearly biological nature of memes and the selection process that goes into the ones that we end up seeing.