I like action, I dont have an issue with it, I live in Vegas and havent put a dollar in action in one in 2 or 3 years and when I do its with out of town friends and I might play $100.
Deciding to be on the pro tour isnt a personal choice, you have to be born with something special to get there, the idea and good intentions just isnt enough.
By your choice of words it sounds like its a issure for you, if it is dont get in action. I can play for $$ and I dont have a gambling problem, Its possible to play pool for $$ and not have a gambling problem, as far as taking someone elses $$ I have no problem with that, its their choice to play. Same goes for me I lose I pay-no problem(I dont like it, but I awalys pay)
Gambling does make you a tough player, when making shots that can cost you, that will impact your concentration, focus etc. It will make you tougher for sure, however I have seen a few player who dont gamble that still play strong. Tournments are gambling in a different form. If its worth doing its worth doing for money, in everything in life.
At the end of the day I dont think non-gambling players are as head strong as gamblers, Its possible to be hugely talented and play great and beat most players, but thats just displaying your talent not your heart, a hardcore A- player that can fade $20,000 action is a tougher player than a gifted A+ player, the talented player might play better and win but the seasoned A- player is still tougher and will come with it when it matters(even if he is out classed) he has more heart than a talented player. Having said that I dont believe a non-gambling player will ever have the heart of a gambler.
Having said that I havent been in action in along time, I will be soon I'm ready now. Recently my back has been bad and I was playing bad, now that i'm a bit better so I like my game now and want to bet on it. No big deal, I just like the results from action-I play better.