Those cards that store force customers to use to get sale items and track purchases are an invasion of privacy. Not only do they sell your consumer information to other businesses, but they also have given it to LEO in crime investigations. I would not doubt for one minute that they would hand it over to insurance companies or the government to see if tobacco, alcohol, OTC drugs, and so called unhealthy foods are purchased.
Share the cards with as many people as possible, swap them around. You all get the benefits and savings but the collected data is useless.