Climate scientists often have the goal of cleaning up emissions/passing effective regulation to curb climate change. Is that a problem too?

Who just “does science for science’s sake”? This is just a nonsense talking point because you don’t like what they’re saying. You’re arbitrarily deciding this matters when it’s not a standard anywhere.

Critique their work. Try to duplicate it. But assess the work. That’s what matters. You’re functionally saying that nobody can “do science“ if they have an opinion on the thing they are studying.