So yes, there is always going to be a fight for power in society, and people are going to find ways to buy power with money to the extent they are allowed. How

So yes, there is always going to be a fight for power in society, and people are going to find ways to buy power with money to the extent they are allowed. However there are ways to structure governance to limit the extent to which wealth can buy influence. For instance, I grew up in the states, and currently live in Germany, and while no government is immune to the influence of capital, having a multi-party system certainly does seem to lead to outcomes where the best interest of the people have a much better chance of winning out than you see in the states. I also disagree with your reading of history that we're regressing to the natural feudal state of humanity, which was disrupted only by the world wars. I would argue what we have seen is more like a pendular oscillation between consolidated and distributed power structures, at least over the past several hundred years. For instance, in France and Russia, ages of elite opulence, and disregard for the well-being of the general population gave way to violent revolutions which resulted in the redistribution of power, at least nominally, toward the population. Similarly, the gilded age in the US represented a massive consolidation of wealth in a few hands, and it eventually gave way to a labor movement which put more wealth in the hands of workers. Since the late 70's at least, the neoliberal movement has been on the march to separate labor from their power and return it to the hands of the elite. We'll see if society manages to find some kind of equilibrium, but if history is any indication it seems more likely that some breaking point will be reached, and existing power structures will be torn down in favor of new ones.