The invention:  A robot that goes to meetings for you.
Not telepresence.  Tele-absence.

Changing the world:  In addition to freeing up a crapload of time… this will prevent a ginormous number of needless conflicts.

If you hadn’t been at the meeting, you wouldn’t have responded to your colleague’s idiotic comment, and we’d all be better off, right?

Getting rich:  Obviously, everybody needs one.