If your defense team wins matches, you are worth more when someone sees you as an invasion. You are given a small %stat buff + increased reward if beaten.
The more your defense team wins, the more reward you receive.
This would be beneficial in putting together a solid defense team instead of placing one troop for revenge purposes.
I think Diablo 3 uses a similar mechanic (in a sense) when a monster kills someone on your friends list, they come and attack you. If you can’t beat it, it gets stronger and goes to the next person on your friends list.
Thought it would be an interesting incentive.