Some good answers here. I agree with Harry Canyon and Headfirst.
Quantum spellcasters are the real problem -- those pesky wizards who seem to have every spell needed for any situation and enemies always fail their saving throws against them. Too bad these spellcasters only exist on internet forum discussions. A good martial has high AC, high HP, and is a killing machine.
As for martials outside of combat: Martial characters are respected by the populace, and by the rulers. Fighters are covered in metal and carry deadly weapons. They tend to be (as they ought to) belong to organizations of reknown, whether it be a paladin's order or a pirate band.
For example: an "arcanist kitsune with draconic bloodline and a level dip in stormwind sorcerer" will likely get roasted on a spit by a hungry village. A "Human Hellknight of the Order of the Nail" will be invited to the feast, and asked to tell of his exploits.