A.I. in the Job market

Obviously A.I. has it's pros and cons.

Certainly proper use of A.I. would make all of our lives easier, doing the menial jobs we don't want to do, and fight wars so we don't have too.

However, would we as the world's middle class truly benefit?

Say these robots are made, would that wealth go back to the middle class so we can live a utopian lifestyle and colonize space?

Or would the most wealthy horde all the wealth, leaving us all broke and jobless?

Please discuss.