The fact of the matter is that Procter and Gamble doesn't need to "bribe" any politicians to get favorable legislation. They just have to call up a Congressman and say: "hey, we have tens of thousands of workers in your state, it would be a shame if anything happened to them."
I think that you have a good point. But these "tiny" amounts could easily double/triple the politician's salaries (if the companies spend it in the right places, they don't need to bribe everybody).
The fact of the matter is that Procter and Gamble doesn't need to "bribe" any politicians to get favorable legislation. They just have to call up a Congressman and say: "hey, we have tens of thousands of workers in your state, it would be a shame if anything happened to them."