A phone, a car, a wallet, plastic bags, lighters... they're all ubiquitously used by the drug industry. Preventing scales because of illicit use of weighing something is like banning cutlery because they can be used as weapons, banning cars because they can be getaway cars, banning phones because they can be used to setup illicit trades, etc etc. I think it's a bit silly and I don't think it'd affect the brand any more than it already is (peruse drug culture on social media and you'll find plenty of iphones featured, it hasn't affected the brand at all in a negative way, it's still a luxury item and people still view it as a phone you'd love to gift to family of any age if money is of no concern).