This is a risk yes, however there can be something done against it. From my point of view, both of what you are describing are a regulatory problems. For the first, hold the AI companies accountable. In this second they either prevent their agents from going rogue or go bankrupt, because the claims of damages are too high. The IP infringement thing is the same, do we want to protect IP, if yes pass a law that they have to pay as everyone else.

Similar for the jobs ... if no one, or nearly no one is left for having a job. Who do you think will consume? Yeah, luxus companies can always sell products like megayachts or super expensive handbags, but these companies are not the backbone of the economy. Economy will simply collapse if no one is buying all the products. So this is a problem that will sort it self out.