The world's insatiable demand for health & beauty products has made a number of drugstore owners seriously rich. These include Stefano Pessina, CEO of Chicago-based Walgreens Boots Alliance (WBA), and Li Ka-shing, Chairman of Hong Kong conglomerate CK Hutchison Holdings and retail subsidiary A.S. Watson. Both are the largest shareholders in their respective companies and personal billionaires.Götz Werner, Dirk Roßmann and Erwin Müller, the founders of leading German drugstore chains dm, Rossmann and Müller, also rank among the planet's wealthy. But their thriving businesses hardly extend beyond Europe and cannot match the US and Chinese giant in annual sales, store count or global reach. Put in health & beauty terms, they are provincial European belles in a Miss World contest.