A higher salary usually comes with larger responsibilities and accountability. The exception is usually when you have a very niche skill set and you are paid handsomely just for possessing that skill.
So when you have a lot of responsibilities that suck most of the time out of your day job, to the extent that delegation and LNO doesn't work anymore, I find it hard how one would find time to pursue other interests.
IMO, you would be really lucky to be in a job that really interests you and find meaning in, and still pays you well. Otherwise, you will be stuck in the balancing act of "work and life", and wait for Fridays to arrive and dread Mondays!