The real fallacy is pretending that game balance is only important for hardcore raiders. As I've said elsewhere:

Quote Originally Posted by Gilthas View Post
I'm hardly a hardcore raider, but balance is very important to me as well as for most of the playerbase, not just raiders. You act like "balance" opposes "fun and interesting", but that's simply not true.

It's not fun when:
- everyone only wants Rangers because their damage is so much better than everyone else's
- Rangers get nerfed into the ground and perform worse than almost everyone else so no one wants them anymore.
- people only want Warriors for their merit parties because they have great damage and good survivability
- no one wants your Dragoon because the community thinks the job is crap
- Black Mages no longer can get regular parties because TP-burns are much better experience
- Puppetmasters are considered a joke job.

And so many other glaring issues that FFXI had because the developers sucked at balancing.

Having unbalanced jobs is bad for everyone. It's bad for the player that likes the job because he gets shunned from most parties, and it's bad for those who don't play the job, because they get stuck with an underperforming job in duties.