Faction, Clerics, and Teal...

[Phillosopher27]

I've been noticing an increasing problem on teal and would like some clarification on the matter. We (34+ melee) have a huge issue getting clerics to come group in Sola to kill gnomes, and HHK guards because they are worried they will tank their almighty Gnome faction in ak'anon. So my question is, If a cleric is NOT a gnome, what are they losing out on by killing gnomes in Sol a, and Guards in HHK? I just dont see the point of stifling 90% of melee in their mid levels because you don't want to tank faction in a city you'll never visit? Unless there is some other reason. Please, HELP ME UNDERSTAND!