That may happen eventually, and I'd be surprised if commodified IQ enhancement with reasoning skills wasn't available within - say - 10-15 years.
But there has to be a mainframe-like stage before then, because the first versions of the technology will be industrial (Watson++), not domestic.
Google are well placed to be big players at that stage. More speculatively, so are Amazon and Facebook.
MS are maybe half-way to thinking that far ahead. Apple don't seem to be, because they're too fixated on shiny trinkets now and not on long-term strategy. (Siri was a creditable v0.1 attempt but doesn't seem to have improved at all since release. Watch is - to be polite - not a player in this market.)
But even after that stage, how can you be sure that a commodified agent won't be acting in the interests of its creators/sellers/sponsors instead of its owner?