After years of playing this game there's several times where mid campaign your Ally across map who's fighting the enemy you don't want to fight is Losing so I'll send them large amounts of money in hopes they will buy an elite army. Upgrade their cities buildings and defenses. Etc Etc.
I always wonder does this help at all actually. The AI cheats anyhow. But does the AI actually use the money sent to get back in the fight. Seems this far that AI doesn't.
-In side note also AI allies never send me any $$$ when I'm down and deny when I ask lol