Money after battle?

I have installed SS6.4 again with the bugfixes and I have noticed that after every battle I gain some money. Is that scripted? Can I undo it?

Money after battles is scripted. I believe you can turn it off by turning off BGR in the setup menu. This means you will have to restart your campaign.

It makes sense though.
Historically, if you won a battle, you would get some plunder from the defeated enemy (from his supplies, loot etc...)