Makes perfect sense, he's the straight man who's constantly surrounded on all sides by chaos and people he doesn't really jive with. He's caught between two worlds and struggles to find others that are on the same wavelength.
He's not as snooty as the high society he wants for himself, but he's also not as down to earth as most. His lifestyle and the people he's got in his life push his buttons which causes the reactions that make the character so beloved.
Getting later and later into the original series and Frasier himself feels way more insufferable and egotistical. The scenes of the other characters are always a hoot, but Frasier just seems to complain about everything.
Love the show.
Not a fan of the sequel. But I can run through the original. Niles and Daphne were a great match, and they got together without making either character less for it.