I've touched on this in a few other replies, but I'll restate here:
I'm not interested in making money from this.
It would feel really rewarding if I could (directly or indirectly) save someone's life or prevent some act of senseless violence. Even if there's only a small chance of achieving one of those outcomes, don't we have a moral obligation to pursue something like that?
Years ago, one of my wife's friends was having major problems with her husband. The friend had been texting my wife and mentioned that there was some kind of confrontation. And then the friend just stopped responding to texts. My wife was kind of freaking out after a little while, so we went over to the friend's house (the husband was also there) and sat out there trying to figure out what to do. We had no reason to believe the husband was violent, but it's hard to know how someone will react in a tense/emotional situation. We weren't sure if it made sense to call the police, because we didn't know if the friend was actually in any danger. After weighing the options, we decided to call the police non-emergency line and ask if someone could check on the friend. They transferred us to 911, and we told the dispatcher the situation. They said they would send an officer to check. At this point, we decided to knock on the door. The husband answered, clearly unhappy we were there. We said we just wanted to make sure the friend was ok. He told us to get off his property or he would call the police. We agreed to leave but told him we had already called the police. My wife got a text shortly after that from the friend saying that she was ok, but thanking us for checking on her. We waited for the police to arrive (about 10 minutes later) and we drove home.
Long story, but I've thought about that night a lot. I think we did the right thing. If we had done nothing, and the friend been hurt somehow, I would have felt horrible knowing that I might have been able to prevent it and didn't.
I feel this is a similar situation, but on a much bigger scale. Honestly, until yesterday, I had filed the fentanyl epidemic away in my brain in the large folder labeled "tragic things in the world that you can't do anything about". But hearing the campus police chief talking about student deaths related to fentanyl-laced pot at my daughter's college orientation made me start thinking about it again. I'm very cognizant of how cringy it is for tech people to think they can save the world with tech, but I tried to consider the economic, social and political factors involved and let myself be curious about out-of-the-box solutions. And I came up with something.
PS. Oh, and I think it would be a fun story to tell at parties.