A good job is one that you enjoy coming into work every day. What that means to you is totally dependent on the individual.
Money isn’t everything. I know I can probably get a job with a 50% raise somewhere, but I would hate my life and hate coming to work everyday. Stress would probably eat me alive, between red tape, incompetence, and workload. But I am paid fairly, my work is very enjoyable, I’m at the best company I’ve ever been to, they are very liberal with travel, I have relatively low stress, and I’m leading a very visible product. A raise of half my salary wouldn’t make up for all of that, as nice as it would be. Especially since I’m far from underpaid.