Why didn't Qui-Gon's Force ghost communicate with Dooku?

Dooku tells AotC Kenobi how he could "use [Qui-Gon's] help right now", wishing that he were still alive.

Isn't it possible that Jinn's ghost maybe could have talked Dooku out of it or at least tried to?

Here is an answer I found on Quora; let me know what you think of it:

"Dooku was quite the arrogant and opinionated man. Being Qui-Gon’s former Master he had no perception of feeling that he had anything to learn from his students or those around him.

Dooku was disillusioned with the Republic and the Jedi 0rder. He had also been seduced by the Dark Side of the Force due to his disullion. It would have been a waste of time for Qui-Gon in Force Ghost form to approach Dooku.

He blamed the Jedi Orders complacency as the cause of Qui-Gon’s death. Dooku was a cruel, arrogant man who always thought himself above most people. There was no redemption in his heart."

Because it wasn't in the script.

I don't agree with the answer you found on Quora. That seems stupid not to even try.

Qui Gon possibly couldn't have talked to Dooku. And yes, the answer is the script didn't demand it, but if we're searching for an explaination, then an ability of some sort would suffice properly.

Why couldn't Qui-Gon's ghost spy on Palpatine?

The force ghosts can't interract with the world the way we'd like them to. They're entirely made of the force, and don't even exist in the physical world. They can talk to those who are alive. Going into a place of darkness would not be easy, and the living force would likely only permit a person to communicate after they die, because they can feel their life essence. Force ghosts aren't gods, they can't just do anything. They're far more limited with their abilities in the physical world than people who are alive. It's the price you pay for completely giving yourself to the force.

Originally posted by The Ellimist
Why couldn't Qui-Gon's ghost spy on Palpatine?

Why couldn't Mundi's Force spirit appear on Kashyyyk to eliminate those evil droids?

Would you let up about the droid attack on the wookies? they're wookies, they're built for fighting, they'll be fine. Just relax. Everything was fine.