Ask HN: Should you follow a large group of not so smart rich money?

The industry is going towards a direction that you know is a bad idea. A lot of money is being poured into so-and-so technology that you know is going to bite back - badly. However, everyone else is going that way and that's where the jobs are heading and where "investors" are 'spending' a lot of money there and the tech kool-aid is gushing out.

Would it be better for your career to follow them or to spend more time in an area where you believe is the future but nobody is spending any money there?