Go to work for the F.B.I.
They’ll put you to work as a teacher. You can spy on people like yourself.
At least you’ll have a paycheck.
There is that conscience thing, but they all realize they are dirty at some point, and manage to muddle through, sometimes for long careers.
Depending on how smart and self-aware you are, the conscience thing doesn’t have to matter. Let people convince you you’re doing the right thing.