Have you considered that many players just are not capable of completing the ascended dungeons without lots of wipes? That may be why it is hard to find groups. Ascended dungeons are not meant to be able to be completed by everyone, after all.
They are meant to be challenging end game content for players who work together well as a team etc.
The normal dungeons are the dungeons for the masses. Ascended was always planned as the challenging part of the game, at end game.
The underlying problem of what your experiencing I think..... is either one of two things:
1. Not enough players are able to complete the dungeons efficiently, so do not bother. < nothing wrong there, it is meant to be hard.
2. There are not enough players in the game, to form regular groups that can efficiently complete the dungeons. < This is a problem, players are missing out because of the lack of population.
Increasing loot is dangerous. Sure it will encourage the players that wipe 10 times to complete the ascended dungeons as they lose less gold or even make profit, but it will also open up the ability of players who can complete them efficiently to farm the hell out of em and make huge fortunes.
I understand your frustrations guys, but increasing loot does not and will never fix the underlying problem of not enough players across time zones to form groups.
That is only my opinion, there may be be other reasons why players are finding it hard to get groups. Lack of tank/healer for example, but anyone can fix that instantly for themselves and other players, by respeccing. That is what I did to get most of my 45 set and I had lots of fun doing it!