Actually, when I saw the "Empty People" my first thought was, I used to draw suits like that when I was a kid. Learning how to show tension lines at the button holes and arms. Sort of fabric drawing 101. Knowing he was self taught I thought we all went thru that stage at about ten years old. Unfortunately, that is as far as I ever went.
On the other hand it probably was just a social commentary on his realization of all the empty suits in high positions.
This is one I like very much.

Homeless