Not who you replied to, but there is a massive misconception here that must be addressed.

Socialist governments shift power from unaccountable, anti-democratic Capitalists to a more democratically accountable state. This is not an "easier access to corruption," but a removal of that which corruption was assumed as a given. Additionally, by rejecting the profit motive, you remove lobbying and other methods by which the wealthy shape and shift the state, corruption itself is minimized.

Your assumption that Capitalists are somehow not corrupt when exploitation is a requirement for there to be a Capitalist is the key issue here.