Or even more reasonably, if I were spending billions on such robots and they became a pervasive part of society, such that every family had such a robot regularly visiting their house and their daily routine was dependant on such robots...

Coupled with the fact that the function of said robots could be changed with a code push...

Doesn't that create an incredible opportunity for monetization and therefore risk for future abuse?

Just because we could provide a perfect search result to any query if we knew everything about a person (including their current thoughts) doesn't make enacting that a reasonable or good idea.