I don't think:

"Haskell: more elegant than Javascript and C++" would make a good promotional motto.

That's like bragging how prettier you are than Danny Trejo.

I could not agree less. People used to call Python “executable pseudocode” - in that spirit, Haskell is executable pseudo-math. If you’ve done enough higher math that a professor’s whiteboard notation feels natural to you, then Haskell might feel like a reasonable approximation of that style. Otherwise: it’s line noise.

(I write Haskell professionally)