Main story quest line (forced dungeon runs and primals) help curve this issue but I don't feel it absolves it. Honestly, it's a non-issue if you /sh to form groups in end-game. If you run into an incompetent player failing to capitalize on their jobs abilities then you have a couple options. Ask them why they're not doing X Y and Z, they respond with either calling you a noob and demanding you don't tell them how to play their class or they say they didn't know. If they respond with the prior it becomes a clear choice to simply drop them and move on and don't invite them further. If it's them not knowing, possibly help them understand and run lower level dungeons with them to slowly have them learn skills. I'm not saying it's your responsibility to aid them but it's the holistic approach. It will be clear and evident they didn't level properly.