evil can come in the guise of beauty theme

We are warned not to be deceived by beauty as attractive people (or objects) may in fact be quite as evil as anyone (or anything) else.

Examples

Miranda Jones was both smart and beautiful but under the surface she had a viciously jealous streak in tos3x07 "Is There in Truth No Beauty?". This in contrast to the Medusan ambassador who was hideous yet remarkably accommodating.

4 total · 1 choice · 1 major · 2 minor

StoryLevelMotivation
ftt1982e1x01 choice A point of the story was that the beautiful princess was morally flawed, while the ugly frog was in fact a flawless prince. The king chided the princess for associating beauty with virtue - a common error in his estimation.
tos3x07 major Kollos was hideous to some and beautiful to others
ahh2x21 minor Helen's mother said "pretty is as pretty does" meaning that Dorothy might look good but was, in fact, a nasty piece of work.
nightgallery1x01b minor Cedric said to Miss Wattle that his wife, her beauty notwithstanding, was evil.