I started golf as a caddie in Australia, at one of the top clubs. It's a shame the caddie system died out, because I learned a lot at that end of the spectrum.
There are many people who would disagree with you, as they earn a good living from golf. That's not tour just professionals, who get eye-watering prize money. It's club managers, greenkeepers, bar staff and pro shop staff, to whom golf is highly relevant. It puts food on the table.
I really doubt business is done on the golf course anymore, executives at that level are too time-poor nowadays.