I'd love to have a Companion (temporary or permanent) that's just horribly weak, a rebellious commoner fighting "The Man" (Occupy reference kind of). One of the "sheep" who isn't a Hero with any special abilities, might be a decent Blacksmith at the Stronghold, but in your party he is rather worthless.
I loved it in Suikoden that you could bring your Blacksmith with you, or your Cook, to fight in your party. They had some special abilities but were rather pointless and not really necessary for the progression of the game (they were important for your Stronghold). But I still brought my Chef with me because I thought it nice (Roleplaying-ly) to have a Chef with me. Not so much Character Inspiration perhaps, or perhaps it is I don't know... ^would be fun imo
so...you're advocating for useless party members?