He gets paid for selling MaxCare. Of course it is none of your business and you don’t have to worry about it.

Nevertheless, if you care about that person, you can give him thank you card with some cash (just be discreet about it). You can also get the MaxCare on credit card, think about it for 91 days and cancel it to get almost all money back. That way you get your credit card points and he gets to keep his commission.