But this diminishes interest in the role. Therefore, you can introduce more diverse counter-roles (for example, Éowyn in relation to the Nazgûl). The chance of a successful action for such a role is low, and it can only work once. But even so, it can be useful, which encourages the player to use it. And at the same time, it encourages them to play more attentively.
It's a simple human factor: some people enjoy playing with a strong role, while others don't want to think about nighttime strategies every time. Another thing is that there aren't that many people who specifically enjoy daytime play in the game; you could probably count them on one hand.

Барон "Vampires"
Отдай свои прошлые сны,
В сомненьях себя обрети,
В бешеном танце душа кружится!
Не думай, что будет потом,
Здесь и сейчас мы живем,
Стань хоть на миг сам собой, слышишь!