What I mean is guys like yourself seem to look down on "vacation divers" almost as if they are a nuisance to the sport.
The funny thing is, no one except folks like you even care about stuff like that. I've been lucky enough to travel all over the world and be on dive boats with hundreds of other divers. No one ever asks, "Hey, are you a PADI diver or NAUI diver"? Never do I hear anyone say, "Would you consider yourself a serious diver or vacation diver". People are just out there having a good time and that's what matters to them. These conversations makes for great SB chatter and internet talk but that's about it. The only division is the division that's in your mind or maybe the division you create around you. I've never seen it in the 27 years I've been diving. But maybe I don't hang with the "Cool Kids".
I don't look down on vacation divers. It makes me happy that people can enjoy the beauty of the underwater world at whatever their level of interest and level of dedication. You are definitely not a nuisance to the sport.
Professionals in any sport live in a different world than those who do it for fun and they live in a much different world than the occasional participant. Like you said, most people don't care about the stuff I, and others like me, care about. My girlfriend is a pro figure skater and lives in a world similar to mine. The stuff that she and the other coaches care about, the politics of US Figure Skating and Professional Skater's Association, rink vs. rink, club vs. club, and the years spent developing the craft are very similar to diving. When you live it 24/7 you are exposed to diving, skating, or other fun activity more often and in a different way. My girlfriend was on the ice at a resort the other night where all of the other skaters were just there to have fun. It's a beautiful secluded resort in the mountains. Everyone was having a good time. My girlfriend left the ice to a standing ovation because few of vacation skaters had ever seen anything like her in person. While she enjoyed being there with me in a romantic setting, she was annoyed with one of her boots. She thought she did most spins really well. She thought her shoot the duck could have been lower and liked only one of her jumps. As soon as she put on her skate guards, she was texting a skate director in NJ and several of her students. Then, began griping about "work."
We work while others play. Those at play are usually unaware, blissfully so, of those things that pros notice and have on their minds. Even when we aren't working there is rarely an "off" button when it comes to sport. Since my local dive center was a training agency HQ, I've been immersed in the industry for over 35 years. I notice things from that perspective. As a long-time lifeguard, I cannot go to the beach and not look at it as a lifeguard. I've tried.
I also am aware of my surroundings. I like to start sh*t online at at popular sites, but when on boats where there are people on vacation, I know they just want to have fun. Some may have saved a long time to travel and don't need me giving unsolicited advice, opinions, etc. I've heard, "Wow! You guys are the only nice tech divers we've ever met," more than once. You might be surprised how well I can play tour guide for the vacationing divers and how often I take the occasional divers for those occasional dives. Like you said, "These conversations make great SB chatter ..."