Why do neo-cons talk so aggressive when there service records are do lacking?

I went to the "Chickenhawk" website-and I was appalled at the lack of service by our leading Republican Politicians -conservative talk show host etc. I know this is just a generalization-some Repubs served honorably-and I know the Clinton issue will always be a diversion for the neo-cons-but I think it is the" little fat kid nerd theory"-guys like Limbaugh-Cheney were the little wealthy fat kids who were picked on-when they got older and became empowered they became aggressive -look at the website your self-the Dems as a whole served there country (Military) more often than the Repub.