His past matters, he was PM of Pakistan and aspiring to become again.
There are many corrupt people on the left and right side of Imran Khan even IK is involved in this via Farah Khan. 25+ members of his party left him. He selected them, so all blame should be on him. How many time he will hide his mistake behind other people?
If you hire team for some project and your project fails. I am sure most of the blame will be on you and you will be the first one to be fired. But in Pakistan its opposite, low level people are always made scapegoats and Imran Khan is doing same thing on everything which fails. He blames someone else for his failure.
I didnt say anything about heaven or hell. No doubt only Allah can judge.