In the right bottom of the screen left click on "Politics" then right click on a portrait to display their info and look at "assets." You will see most people have a few hundred million gold. Also, in the right hand corner (next to politics) click on "Important units" then expand the "Neutral" and "Enemies" categories. Right click on several of those portraits and you will see many have a few hundred million with the trainer whereas they only had assets in the thousands before the money option. thanks!