IMO robots arent any good for humanity..and why?
Here is my theories and stuff about robots.
I think robots are and will be made (im pretty sure they will be developed in the future) with the objective of making our lifes easier..by other meaning: we dont have to move a shit.
If that happens your brain will no longer face that daily challenges that you are used to and gets lazy and you get a dumbass, except you do some exercise with the brains like playing chess and other activities that make the brain think!
With the robots if the right laws arent made in the right time the bosses of the companies would use them as employees and has they wouldnt have to pay them that would be "better" for the company, more profits..
In a very advanced state when the robots are really intelligent, and if they keep developing robots like they are trying to do atm( this means, imitating the human being ) they will get alive in some way!
They will start asking for their "rights".
As robots in that age are intelligent as hell and people dont use their brains to do nothing they will takeover the world kill all humans and bye.