A lot of these mundane jobs do need to be done, but a lot of people enjoy stable mundane jobs. Leave these kinds of jobs to them, they will actually thank you for it. If you're more interesting in accomplishing something, there are far more jobs that really need someone with some skill to come and do them - or, more realistically, find them.
I agree completely in the terribleness and lack of will in a statement like "That's life". No it most certainly is not. Life is entirely what you make of it and we are a long, long way from being forced to perform mundane tasks. If you can handle the stress of doing something new instead of doing something mundane - the door is always right over there. Walk through it and find your own path.