Like... Are you projecting or something? What kind of mental gymnastics do you have to do to think that wanting your rewards for succeeding something you put of lot of work towards to NOT be handed out to just anyone is a self-esteem issue?
Clearing Savage and Ultimate takes a lot of time and effort, but it's rewarding when you do and release the good chemicals. Knowing that you did this with everyone in your party having put time into studying their job in the encounter feels even greater. Knowing you did it with someone who treated this as an expert roulette actually feels bad.
So yes if you're say and BLM doing less damage than a SCH, you might get the clear but you won't have earned it, it won't be deserved, because it's simply unacceptable in high-end content. It will be handed to you on a silver platter by the rest of your party, quite literally carrying you with their gear.
What experience? You literally don't have a single job at 80. You can't access the current savage tier. You genuinely don't know what you're talking about here. And don't even mention your WoW experience, WoW and XIV are not the same game with a different community.
Once again, you say over and over "it's a video game sweaty" but so what? This could apply to a lot of other activities.
The rewarding feeling of knowing you achieved something you put a lot of time and effort into with people who tried as hard as you did is GREAT, and giving out rewards is like... A motivator, a staple, it's one of the very bases of video game design. Players performs a feat? They get something to show for it. Player doesn't? They don't. Thinking the latter does is extremely entitled and disrespectful towards those who put time and effort towards achieving it. Do you think everyone not just participating, but trying to participate in the Olympics should get a gold medal?
So basically, want something? Work for it. And while it unfortunately happens, don't feel entitled to be carried when you're not performing at the level expected from a given group content.