to think about the fact that people like tom cruise and robert downey jr wear elevator shoes instead doing CLL, surgery with ridicolous cost for them
As actors they do have a unique situation, however. The director isn't saying you're short, but rather your character should be a certain height. This can also change depending on your costars; sure, they can cast people according to desired height, but it's easier to cast strong actors and adjust their height with camera magic. For instance, here's
Humphrey Bogart in Casablanca. Sometimes women are made taller as well, like
Gillian Anderson from X-Files. Then there's Hugh Jackman (6'2") as Wolverine (5'3"), he's miscast on paper but he's great on screen. And let's not forget
Tom Cruise.
They might not even have height dysmorphia, since as famous actors, they are showered with compliments, highly regarded, and are generously compensated. However, a struggling actor that is short may blame their height for not getting certain roles, as a director might not be able to look past their stature. If there are two equally talented actors, the director will likely choose the taller one.