Also mapillary.com :)

40k is the standard annual subscription for each of his “members”, not his salary. He claims he serves 1000 families and has 135 people in his staff.

If you block the ad, the budget is assigned to another person and both FB and the advertiser benefit from you blocking it.

The best way to harm the ad is actually to interact with it (click the ad, or like and unlike it) so that FB registers your “interest” and keeps showing it to you rather than somebody else that could actually be influenced by it. Bonus : you’ll get other similar ads that you can also manipulate the same way.

Yes.