Same GC Ifrit killers gets better reward

[Vesper]

If you are afraid your friends will throw you under a bus for these weapons (that by the way will most likely be as good or a little weaker than fully materia'd crafted weapons) then you probably need to find new friends. That or you yourself are willing to do it.

Has nothing to do with friends, has to do with everyone else. Not everyoen can ALWAYS play with friends. Sometimes you need to do a pug and this is where the biggest concern is.