Vince didn't introduce everybody to wrestling, there are plenty of other promoters and wrestling promotions, some people never liked WWF and only watched WCW, Vince had nothing to do with that, others only like ECW and never liked what WWF stood for, and there are some TNA fans that have never watched WWE! Plus, there are countless other promotions around the world, like New Japan, AAA, ROH, and many more!
There are plenty of other promotions that some people could of grew up on, even in the 80s there was Promotions like AWA and NWA, Vince has never been the only wrestling game in town, even though most fans of wrestling probably got introduce to wrestling through WWE/WWF, do not assume all fans have, because there are other forms of wrestling and other wrestling promotions!
BQ: I wouldn't consider it evil or not caring, but I think you are going a little overboard by saying WWE is doing Shelton a favor, he can not reach his potential if he doesn't have a job, if WWE really wanted to do Shelton a favor, they should push him to his Potential inside of the WWE, instead of making look for work elsewhere to reach that Potential!
Any way, WWE just made a business decision by cutting Shelton from the roster, so that doesn't make WWE Evil, and people are criticizing WWE for that decision because they feel it is a foolish thing for WWE to have done, since Shelton is considered the best pure athlete by many inside the WWE and even many fans as well! Shelton has the total package, and the only thing anyone can ever think of as a weakness of Shelton is his Charisma/Mic Skills, that is it, so it does seem a little foolish to cut someone who can really go inside that ring just because he isn't consider to be great with a Mic (BTW, he isn't awful with a Mic either, just saying...)