What has been driving US interventions lately is cronyism. Not idealism. If we were pushing good ideals, they would be working. They were working in the past. Now we are pushing cronyism and are whoring out our foriegn policy to the highest bidder. Usually the House of Saud.
Yep, It seems most of our "representives" do their best work lying on their backs with their legs in the air - not a pretty picture.