I think this only applies to a rather narrow set of ideas.

I'm not really interested in pursuing ideas that stop being good if somebody gets there first. If I bothered to design it its because I wanted it to exist and if somebody makes it exist then I'm happy because then I get to use it.

So what kind of things does this apply to? Likely, it's zero sum games, schemes to control other people, ways to be the first to create a new kind of artificial scarcity, opportunities to make a buck by ruining something that has been so far overlooked by other grifters. In other words: bad ideas.

If AI becomes a threat to those who habitually dwell in such spaces, great, screw em.

In the meantime, the rest of us can build things that we would be happy to be users of, safe in the knowledge that if somebody beats us to it, we'll happily be users of that thing too.