So if cashers get a "cash" button...

Why can't industrial countries get a "produce" button and get a boost in production...

farmers get a "farm" button and boost in producing food...

researchers get a "think" button and a boost in researching

oilers get a "drill" button

Why do cashers get all the love?

that you would need to ask from mehul who made original game.

i think there was farm-button once in old game but not totally sure.

I think it is good that all of the different types of countries have different mechanics. Because of the cash button a casher is less likely than a commie to explore while stocking. Because a demo farmer doesn't benefit as much from cashing it is more likely to build CS's while stocking and convert more easily to DMBR. The cash button doesn't put the cashers at an advantage, because the extra supply of cash balances the demand on the market. The cash button vs a theoretical farm button, does tweak some of the game play tactics. I think its a good thing.

^ I really like this answer.

Basically, he's talking about the asymmetry of different strategies. Think "Starcraft" and "3 races" and how they have completely different mechanics but the game is still balanced.