Hans Zimmer and Danny Elfman quickly disagreed with an interviewer who said film music shouldn't be too noticeable. By nature, music grabs our attention. It entertains us. If a score has stage freight (boring music), people get bored and the film suffers for it. Being bold, deliberate, and recognizable has helped many great scores employed by Ford, Hitchcock, Spielberg, Nolan, etc. The Lord of the Rings, 'The Good, the Bad, and the Ugly', How to Train Your Dragon, Pirates, Titanic, Corpse Bride, The Lion King, Zelda, Mario, and JAWS... they all have bold melodies. So how do we write that theme that grabs people?
Melodies call us to action and engage our memory.