competition and government

I've been thinking about the following lately:

For large corporations, buying off lawmakers to change the rules engagement in your favor has become just another form of capitalistic competition. It's analogous to a game in which an essential part of the game is influencing the rule-maker to change the rules so that you benefit from that change. It therefore becomes almost suicidal for a large corporation to NOT attempt to buy the favor of whoever's in power. If you don't buy their favor, your competition will.