I have to agree, and even in 7mm scale, they are often grossly out of proportion and poorly made. Even rthe best painters fail to make much of them.
It defeats me as to how we can search for such realism in things like lamps, signals, buildings, etc, then let the whole lot down with totally unrealistic figures..
Reminds me of a story I read years ago in the 4th Pan Book of Horror Stories, entitled, "Tha Attic Express", where a guy gets shrunk down to 4mm scale, climbs aboard one of his model locos, and his son sets it off on a nightmare journey.
His description of the people populating the layout has stuck with me for years, and it wasn't kind.