In a big enough organization, it is a complex system with unpredictable outcome. Pouring your soul into it may lead to unexpected consequences as opposed to simpler environments where your contribution actually make a relative difference.
True, that's why if I get to work for a big organization again I'll not even entertain the idea of trying to make a difference in improving processes. I'll just gulp the salary and never stick my nose out of my direct responsibilities as written in the contract.
Making a difference can only happen in small tight-knit teams.
