Not to mention that there are significantly more organized evil syndicates in Marvel than in DC. DC has the League of Assassins, Intergang, and a few Supervillain teams, but by and large as far as super-crime groups go there aren't many ORGANIZED setups. At least not ones that I can think of as I type this post...
Marvel on the other hand, has Hydra, Advanced Idea Mechanics, RAID, Weapon Plus, Weapon X, The Maggia, The Hand, posssibly the Chaste? and a number of other more local organizations as well as dozens of different supervillain groups. Hell, I can think of at least four separate heads of state that are also world class supervillains and still have diplomatic immunity for god knows what reason.