At last but not least, comes jobs at government institutions. You might not get the best salaries here but as you know govt. Jobs have their own benefits. The salary packages offered at govt. Institutions are even less than startup firms.
No doubt, blockchain has brought lot of benefits to the world and among those benefits is a career where high skill individuals gets to earn decent income but to be honest, jobs and careers that comes with blockchain projects and companies requires high skill individuals as most of them seems to be a high level programming jobs which just few percent of the world's population knows much about. I think there's isn't much of a career for anyone who isn't a tech and programming guy