Big businesses use big government to rig the game.
Without big government, big business will have to compete fairly
against small business and small business will probably win because it's more
efficient than big business. (or it may lose if big business is better)
Yes, big business has more financial resources to win in the competition. But, if their lawyers and lobbyists don't have a big corrupt government to buy
officials/judges/etc., then the lawyers and the lobbyists are useless. If the government
is small and consists of honest hardworking officials, then there's no
one to bribe with all that cash that big business has.
Sure lots of cash in the bank helps to market the product more, create a
better brand strategy, do more R&D, etc. (which is good for everyone, as that expenditure goes to other people's pockets). But then, big business suffers
from the same kind of inefficiency and corruption like big governments. So the
advantages of being big is offset by the shortcomings of being big.