Okay, Tyler, that clarifies the question a bit ...
One example: our equivalent of your 401k allows us some flexibility about how our money is invested and I chose the 'socially responsible' option (which excludes e.g. bomb-makers in favour of e.g. renewable energy companies) even though the returns were expected to be slightly lower.
Re livelihood: I have been a teacher for years and have been happy about the fact that it is Right Livelihood. If I had to do something else, I would try to get work which does no harm and, if possible, does some good - I would apply for a gardening job ahead of a pest exterminator's job, for instance. But the hungrier I got, the less picky I would be. Again, it comes down to the fact that we do the best we can with the opportunities on offer.