I think anger is a natural part of life sometimes - but we have some control of how we react to anger. I certainly would quit a job if one of my co-workers was allowed to shout at me!
Often when we feel anger, there is something that needs to be expressed, but the art is in choosing the right moment and expressing it in the right way (which I add is certainly not an art I have perfected!).
While anger is a part of the human emotion spectrum, I doubt it should be the thing driving conversations at work. It sounds like you identified what you don't like and you found a place where you can thrive, and that is something many people won't do, so kudos to that.
But it isn't. Circumstance molds you. The Great Depression did untold psychological damage to entire generations. I don't think they could just will the anger and resentment and destitution away
Circumstance is what you allow it to be. Short of being put in a Chinese concentration camp ala Uighurs, you generally have the last say in circumstance to experience anger.
Often when we feel anger, there is something that needs to be expressed, but the art is in choosing the right moment and expressing it in the right way (which I add is certainly not an art I have perfected!).