The new stores took business away from existing stores.
Changed peoples perspectives and made them think and act differently, like the idea of christianity brought them comfort, if they weren’t having a good life on earth they’d be promised an afterlife, and It also increased people’s happiness.
They both allowed different cultures and people into their own civilization. The difference between them was that one would make the other people pay tribute to them and the other would integrate them into their own civilization and force them to follow Inca laws and learn the Inca language.