If your Sim has a "good" or "evil" trait, they have an option to donate money to benefit or undermine two organizations; it appears on the mailbox and also satisfies a random wish.

My question is this:

Do the donations ever have any impact on the game? For example, if my evil Sim, Miss Jezebel, chooses to undermine the llama organization, after sending x amount of money, is there some sort of consequence/effect of her actions? Or does it simply exist to satisfy the personality trait?

Nope. No effect on the game.

I have seen no impact on anything other than satisfying a wish, and the drain on your sim's bank account, it's a rather annoying wish IMO.

Well it makes you feel good too.

Its good for quick mood boost since you get positive moodlets.

You're helping non-existent organizations continue their fabricated efforts to rid of imaginary issues in Sunset Valley. :P

Actually they are not always imaginary organisations. I have actually had my good sim have the opportunity to donate money to the criminal career base. Took me a while to figure out that is what it was. But it happens.

So maybe there will be some kind of news report in the paper or somemthing. If you undermine the llama's maybe it results in poor game results for the team... maybe....