bein_hasdorim,
The Gemora (Shabbos 152a) quotes a posuk: “Ki hu amar vayehi” – Hashem decreed, and so it was! “Rav Kahane said, this is a woman. She is just full of dirt and blood, yet everyone runs after her”. Meaning, there’s no logic behind it, Hashem said it should be that way, and it is. It’s a Gezeiras Hakasuv. This is probably why, when Chazal say the angels came down to this world demanding a chance to keep the Torah, the aveirah that defeated them was Arayos. Because even though the angels were physical then, they still retained their angelic intellects which told them philosophically that money honor and power are not worth pursuing in this world. And through their great understanding of the futility of these Tavvos they rejected them. But women don’t work that way. No matter how wise you are the Taavah is still there, so the Malachim were unable to undo their Taavah for Arayos. The only way – the one and only way – to resist women is self discipline. Period. You can’t use your THINKING to fight the Taavah here, you can only use your ACTIONS. You have to resist, discipline, and STAY AWAY. This is why restraint from Arayos is called Kedusha (holiness) as opposed to refraining from any other sin. Refraining from other sins could be holiness, but it could also be simple wisdom. It could be you’re a Sameach b’chlko. Even a non-religious guy would be happier if he was a Sameach B’chelko, so not running after money does not necessarily have to do with religion or holiness. As opposed to Arayos, where “EVERY PLACE you find restraint from Arayos, there you find holiness” (Rashi Kedoshim). Because there is only one possible reason for not doing Arayos — self-discipline, and that’s what we mean here by holiness. This is also why we find more Gedorim and Siyagim against Arayos than any other sin. This is why, even though Sefardim always rule like the Bais Yosef even when the majority of poskim are against him, when it comes to issues of Arayos, writes the Chikrei Lev (II:180b), they are permitted to be strict, even against the Bais Yosef, with support of a majority of poskim.