[Any but with 3.P Examples] Magic Versus Mundanes - The Double Standard

[Saph]

"After all, if magic does things better- faster, cheaper, with greater chance of success, and so on- why do we need mundanes at all?"

Why does it have to be all of the above? If you look at the magic systems in most game settings, magic generally only scores one or two out of three on the "faster, cheaper, more successful" scale.

E.g. magic in the Warhammer universe is fast and sort-of-cheap, but every spell you cast carries the possibility of various horrible things happening, which kind of puts a damper on spamming them.