If Morrigan don't gain the OGB(she didn't with me) even if she is mortal knifed she still did cool things,to become an empress adviser,to become more rich,to do stuff in the last court.
She may be a close minded and somehow arrogant character who is a terrible person and did horrible mistakes (trap yourself for the eternity XD) but i cannot say that she is a loser.
All those things are true for Leliana the left hand of the Divine co- founder of the Inquisition and adviser of the Inquisitor ,she doesn't need the PC.
These three males characters (Andy,Sebi and Sten) lost themselves, well in truth Sten never was a "self" to begin with.
I just... don't see much of a difference here, honestly. I see a bunch of flawed characters, ones with virtues and vices, who make mistakes and pursue their own agendas. You could say that Morrigan is manipulated by Flemeth, Leliana is manipulated by Justinia, etc. They both 'lost' themselves.
As far as Sten goes... well, I think that just depends on your opinion of the Qun.

What's so impressive about these three?What initiative they took exactly?
bomb a chantry?invade a city?
I didn't say they were positive things.

But Solas does terrible things as well.