The Ground guy that works in my area and I see each other a few times a day and often have time to chat at pickups, etc. I remember him being excited at his pay when he got his W2 from his contractor for TY2018. He made the same amount that I did as an Express employee last year.
The difference between our routes? I drive an Isuzu with roughly 120 packages on it, making around 100 deliveries. He drives a P1200 (I believe that's what it is, it's longer than our W900) and it is loaded to the gills every day. I work 4-10s. He works 5-10s. He does get insurance, but no 401k match, portable pension, etc.
He can keep schlepping all the Chewy boxes and other big heavy crap all day in his bigger truck with no AC. I'll take the same pay and better benefits for less work, thanks.