Nice topic. The Greek gift is always complex and we sometimes tend to generalize our moves without taking into account the great number of responses the opponent has.
ca.lichess.org/u4iQRjj2/white#25This is not really an example of an "incorrect" sacrifice but it contains some interesting lines which have to be considered. For example, the typical move 15.h4 is considered here a mistake, as my opponent is able to trade a pair of pieces and somehow slow down white's attack. Move 16 for black is also remarkable, as black could have played ...f5, after which I'm not so sure I would've been able to finish the game comfortably.