I like the example of pesticides. The are some really nasty pesticides that aren't banned by law, but there are industry groups that work to reduce and effectively ban the ones that cause birth defects and obvious toxic effects. If you look at a list of pesticides India has banned and compare it to a list that the USA banned the difference and a few more are effectively banned by this group. Nothing is stopping someone from making these pesticides at home and using them on their garden but its like UL for pesticides, no one buys in large quantity without these guys approval.
I think they do this seemingly altruistic thing largely because trust makes for better customers.