seriously what do they have going for them that i dont see?
what i mean is WHY do they have so much power? they are slow and fat, doesnt appear THAT smart, no notable usage of the force (that we have seen in the films atleast), and those tiny arms arent able to wield any weapons really.
so can someone please tell me why these pathetic giga-snails became the rulers of the underworld?
Longevity. They live for hundreds of years, and are very intelligent and cunning; master manipulators by nature and capable of laying plans within plans within plans. Eventually, they acquired a ton of money. Once they had the money, its easy to be the guys at the top. That, and living for hundreds of years and making contacts, storing information, etc.