making all female/male characters in a show or game look idealized or beautified creates an unrealistic portrayal of humans in general. beauty is subjective and being 'beautiful' isn't a prerequisite for their importance to the plot. unless their supposed beauty or ugliness drives the plot in some way (ie. character is a love worker, or vat-grown superhuman, or circus freak) then there's no reason to visually portray them in another way