I'm as cynical as the next person, but seriously, how successful could they be approaching legislators with the idea "Make the tax code even more needlessly complicated to support our business"? Short of outright bribery I don't see any benefit to a politician for supporting something like that.
There are a lot of complications in the tax code because with 300 million people there are a lot of special cases to account for. Adding additional complexity just for the sake of complexity seems like a non-starter.