Final Fantasy XIV is not a job or a career. If you're paid to play, then play with others who are similarly compensated. If you pay your subscription like everyone else, then enjoy the game without judging others. This game is meant to be a source of enjoyment, not a platform for elitism or condescension. Everyone deserves to play and have fun at their own pace. Treating it like a professional obligation only ruins the experience for everyone.
And your assumption that people aren't doing their best is fundamentally flawed. Everyone's effort level and capacity for improvement differ. Just because someone doesn't meet your personal standards doesn't mean they're not trying their hardest. This kind of judgmental attitude only fosters a toxic environment and discourages players from enjoying the game. Everyone deserves to have fun and play at their own pace without facing unwarranted criticism or condescension.