There's a lot of things you could do to be malicious towards other people with minimal effort, yet strangely few people do it. Virtually everyone has morals, and most people's are quite compatible with society (hence we have a society) even if small perturbations in foundational morals sometimes lead to seemingly large discrepancies in resultant actions

You need the right kind of person, in the right life circumstances, to have this idea before it happens for real. By having publicity, it becomes vastly more likely that it finds someone who meets the former two criteria, like how it works with other crime (https://en.wikipedia.org/wiki/Copycat_crime). So thanks, Malus :P

Also, there's a difference between "willing to do a bad thing for money" and "actively searching out a bad thing, then proactively building a whole company out of it in the hopes of making money."

It's the difference between a developer taking a job at Palantir out of college because nobody had a better offer, and a guy spending years in his basement designing "Immigrant Spotter+" in the hopes of selling it to the government. Sure, they're both evil, but lots of people pick the first thing, and hardly anybody does the second.