Many of these leaders decided to not hide underground but to become martyrs.

It is really not an accomplishment to murder someone in their own house when they have not been hiding.

Khamenei was already very old.

His security begged him to evacuate but he asked them if they can evacuate all Iranians. If they can't why should he get special treatment?

He knew he could serve his country best by becoming a martyr.

Meanwhile Israeli leader Netanyahu is so afraid to come out of his hole that people are wondering if he is still alive.