Olympic athletes are chosen based on their performance history in various tournaments through a rigorous system of qualifying trials.
Laver Cup participants are not. They are chosen based on factors like geographical representation and marketing value.
You first said because it doesn’t award points , it is exho. When I pointed to Olympics and Davis cup, you are now going somewhere else .
Very low ranked player can get in Olympics based on their country . Not so with Laver Cup.
The main intent of Roger was to honor legends , the money is a by product