Agreed completely. The most important thing is being needed.
People always talk about Radiology here like it would be better than RadOnc, but this doesn't even touch on how every company will be looking at how AI can make docs read faster/better, cutting down on the demand, driving down salaries eventually. They also have the whole fight against out of country docs doing all the reads for them, etc, which has some legal precedence, but those things change.
We are at least 20-30 years before surgeons have to worry about someone doing their surgery virtually from somewhere else. People should be surgeons if they don't want to worry as much about the future.