To be clear, 100M is a lot to you and me, but for a bunch of these guys, it's really not. Dustin Johnson has already made a reported $200m in his career, including 41mil from June, 2020-May, 2021. These guys have millions banked in their pensions too (over 600 PGA players have over 1mil banked, and over 115 players have over 3mil banked). Phil Mickelson has made over a billion dollars. A guy like Kevin Na has made almost $40m just in on-course earnings, nevermind endorsements. These guys get large checks just for playing in Wednesday Pro-Am's, etc.
Rob Oppenheim needs to get one more PGA card to qualify for their pension. It's literally the only reason he hasn't taken a very cushy club pro job yet. That pension alone would allow a guy like him to essentially do nothing but play golf forever, and he can't sniff top 300 or so in the world. The guys that LIV is throwing $100M at, are already the wealthiest of the wealthy in golf.