It's all about getting a specific skill you're very good at and able to provide it better than most other people. If you can do that and know your worth then you can end up with a pretty cushy job because it's cheaper for them to pay $200k a year to keep you on call so you can fix the problem in an instant rather than pay $300k in service cost and opportunity cost and troubleshooting and lost production time a few times a year when their shit breaks.
A lot of industries still run on legacy tech that's breaking down and the zoomers graduating with their CS degrees don't know shit about any of it.