What is there to do at higher levels in this game? PvP.
Why don't more people do it? They hug their stupid titles, the majority of which aren't won by personal valor and accomplishment anyhow. They don't do anything for you and given the exploitation of these titles, they don't even properly demonstrate any REAL level of PvP prowess.
If they were removed, more people would be willing to jump into fights instead of only fighting when they think they're 100% guaranteed of a win. As a result, the higher level game would be much more fulfilling.
GET RID OF WORTHLESS PVP TITLES AND START HAVING FUN.