There is no position that is more challengeing than that of being the head of a state.
Very few throughout human history made it through as fair. For certain most rulers were not only corrupt, but helped the spread of corruption.
You can read it in any culture, past and present.
Indeed, the risks to one’s soul in leadership are extremely high.
Uthman Ibn Affan [died age 83 on 38 Hijra / 656 CE] was a successful businessman.
He had a charitable soul and did a lot of good with his wealth.
However, he was not a warrior nor was he a good ruler.
Indeed, he was too weak to stand-up against his corrupt blood relations, the clan of Banu Umayya.
Most of the great companions of the Prophet Muhammad, peace be upon him, were against his unfair policies.
Ali bin Abi Talib, the greatest companion of the Prophet Muhammad, peace be upon him, advised him several times, but his advice fell on deaf ears.
He also advised Uthman’s opponents, but his advice also fell on deaf ears.
At the end there was a revolution in Medina and Uthman’s blood was spilt by an angry mob.
Ali bin Abi Talib, peace be upon him, summarised that episode with the following words:

“If I had commanded [the taking of Uthman’s life], I would have been a killer;
If I had forbidden [people from criticising him], I would have been a supporter.
However, the one who supported him cannot say: He was abandoned by someone better than me.
And whoever abandoned him cannot say: He who is better than me supported him.
And I summarise for you his issues:
“He took control and was misled! You became alarmed and mismanaged!
And Allah has a law that applies to the one taking unfair control and to the intolerant!”

May Allah forgive him and forgive us.