Well, if people would get out of the mindset that they refuse to do something unless it rewards them in some way, shape or form .. I guess that's not going to happen though

Personally, I make it a point to queue up for lower level dungeons and story mode primals a couple of times a week as either WHM or PLD. I enjoy doing the lower level dungeons to be honest, and I enjoy helping people (including random people through DF) through their main story. Getting a simple 'thank you' from them at the end of a successful run is enough for me.

Also, I do believe they're planning hard mode versions of most/all dungeons, but it's not as simple as just making all the mobs in there higher level, everything needs to be rebalanced. To be honest though, even with 1498423 dungeons dropping tomes, people will still only queue for the one that drops the most tomes per hour.