Who do you imagine will be throwing money at all these side-hustle "make money with AI" business you envision? No doubt there will be a few- there already are a few- but as the market gets increasingly flooded with AI slop enterprise with very little value add, that well is going to dry up quick.
It's not different than all those content creators making videos offering to teach you the secrets to easy money... instead of just making all that easy money themselves.
> ... when random comments or agent actions place orders
I believe that the purchase action must be triggered by a user manually in a specific "Pay <vendor>" UI element? It doesn't seem to me like any prompt could trigger a purchase directly. Of course this could change, but likely won't for the reasons you said.
Users stay in control — they explicitly confirm each step before any action is taken.