It's done to keep you playing if you have 14 leagues with only 1 human player per league the chances are with the success then all 14 will play another season and be enticed into spending on tokens. If you had one league with 14 human players then the chances are most would drop out of the game before buying into tokens. It's all a numbers game to try to make the maximum out of each player before they lose interest in the game. More will want instant easy success they can brag about than the actual challenge of a game. Just how life is you just have to see the number of people that put leagues wins etc in their sticky to see this.