> If opposite was true then there would be never debate about helping bankers after crisis few years back, government shouldn't have power to "help" private investors with taxpayers' money.

Maybe it's not that the government doesn't have power, but more like the government's power has become a tool for the rich and their corporations due to their larger influence.

> Corrupted companies are less effective, they will eventually die.

Why is this true? Anyone could state the opposite without proof: that corrupted companies are more effective and thrive.

> in free market, if you have capital and don't create any goods, but only spend it eventually you have less capital - it's simple math.

It's not like capitalists just sit on their cash and burn it; their capital is in wealth-producing assets. They don't need to create any goods themselves. Their outsized wealth owns things that does that for them.