Dan:
Back around 1920 the USGA decided to EXCEPT professional golf course architects from the amateur status playing rule.
Before that the debate raged on primarily amongst the board of the USGA and others who felt strongly about "amateur status" in that an amateur golfer should in no way at all profit from the game of golf.
Interestingly, the R&A seemed to be more accommodating of the amateur status rules back then than the USGA was.
Perhaps the thing that really got the USGA to reconsider their strict ways back then was the treatment of Francis Ouimet for his participation in a sporting goods store.
Today the question of professional architects maintaining their amateur playing status has come full circle in that the first professional golf course architect to become a member of the USGA board is current USGA board member Steve Smyers.
Personally, it would not concern me at all if the USGA in the future even put a professional golfer such as Davis Love on their board of directors.
Even today some seems to labor under the impression that any involvement in professionalism in golf infects the minds of people to make correct and intelligent decisions in the world of what the USGA does.