Sorry, that's ridiculous. No one who's not a orthodox conservative is going to appreciate Barton's comments. People who are otherwise politically disengaged or uniformed - which is the VAST majority of the participating electorate - is just going to see this as another Republican protecting big, mean business.
Like I said, it's politically stupid. Maybe Barton's is a largely homogenized district that offers him no real challenger. But, to the Republicans out there competing in the more evenly divided districts or in slightly blue districts, this doesn't help.
You can't advance a political agenda without winning elections. There is a populist rage out there that is aimed at incumbents, but it's also aimed at big business - first it was the bailouts and banks, now it's BP. Clearly, Barton doesn't get it, or he doesn't care. Either way, he's not helping the team in the fall.