Whatever products I'm promoting,I will definitely recommend it for my family and friends,and I and my family are going to use it also , I'm always surprised to see many people don't use there product ,why producing what you can't use, something that is bad all because you want profit or probably for your selfish reason,one need to be selfless in business,in as much as you want profit ,but it's best to produce something that is worth it and won't be harmful to your comstomers and society at large ,it's better to be selfless in business than being selfish.
Don't look at it that simply. Business is much more complicated than that, and as some members have already pointed out, every product is aimed at a specific type of customer.
A product can be very useful to you but not suitable for someone else, or the other way around. So, a business owner not using their own product doesn't mean the product is low quality or harmful.
With competition this tough and customers having plenty of alternatives, do you really think a business can survive without being selfless and actually providing value to its customers?