I agree that I'm being a little silly, it's what my last line hinted at! I do think outrage is better directed at our legislators than at corporations though, but I don't hold out hope for substantive change either way.
I don't think outrage is better directed at legislators until there is some consensus on what would be changes to the tax code that would help alleviate this problem. I think we're a couple of steps from that and I see no reason why we shouldn't get angry at the large companies until they help us with that step. After all: they are the experts on loopholes and tax evasion!