New Support Itemization

I just thought of an idea to make support itemization better, bring back heal/shield champs that are out of meta (Soraka, Janna, etc), AND fix the problem of cheap support items being abused by other classes. The idea would be new items that give gold after healing or shielding a certain amount (with the champs kit of course... no items). Maybe an item that would give 50 gold for every 300 in heals or shields? I don't know just brainstorming.

EDIT: It helps cheap support items because the devs are able to make the cost of items higher because the supports have more income.