why chimps are inferior to orangutans

Chimpanzees are aggressive live in a hierarchy which means that the alphas get all the food and everyone else eats the leftovers,chimps are aggressive they take part in cannibalism and also eat humans especially children 
Orangutans are semisolidari so they don"t interact that much really  and rarely fight fiscally  they stay with their children for 9 years and they sometimes visit their mothers also they are just as smart as chimps