The wolves of yesteryear in my opinion would eat the players today alive....very few wouldn't get eaten.....be death and blood and tears everywhere. Guaranteed players today are softer today....just because of today.
players of the past scored thousands of points without a miss...in the not that distant past players in 14.1 have ran 526 and there have been mulitple rumored runs well in excess of that 526, even 600 and over 700 balls....i doubt anyone has that quantity of concentration anymore except maybe say, gary kasparov.
Luther, Willie, Jimmy, Ralph...the whole gang at Johnston City....not a single one would have a problem running racks of 9 all damn day. If Willie could spit out 100 balls runs (on 10ft tables) like he's falling out of bed, I'm quite sure he could put 9 together, as many times in a row as he pleased. No pocket player alive today would scare Mosconi in 1940.
No billiard player on earth, now or ever, at any game, would have scared Jacob Schaefer or Alfredo DeOro.
To go back to John's original question, I do believe that a professional training institution would go a long way toward garnering respect for professional players, as well as " setting the bar" for what exactly constitutes a " pro" vs an amateur.