While making money is a big game, it's not the only game. Your thoughts and actions leads to behaviors off your computer. This is why we see all kinds of political spam and propaganda to affect your choice at the ballot box.
If a system is machine readable and writable (which AI is fastly increasing this definition) you must assume that not only can you be attacked, you must assume that you are being attacked.
> I'll take "anti-intellectual artistic project" over "cesspool of lowest common denominator" any day.
If everyone else thought like you, humanity would be set back millennia.
Not to mention that it's just flat-out insane to discard the massive amounts of educational content and knowledge present on the internet just because it happens to also contain some undesirable content.
This mindset is not one that we want to spread throughout our society, full-stop. Gemini is a threat to human progress.
Move to alternative webs such as Gopher or Gemini, which make it impractical / impossible to monetize based on clicks / engagement / amount of content. The issue isn't that you can generate spam. The issue is that you can make money by doing so.