As a commercial beekeeper I would have to argue with the analogy that beeswax obtained from a commercial beekeeper is laden with harmful chemicals. Most beeswax rendered from commercial beekeeping operations is "cappings" wax (the wax bees use to seal their honey comb with). As such, it stands to reason that most commercial beekeepers are not tainting their honey and wax with harmful chemicals. For one thing, it's illegal to use miticides and antibiotics used to control disease while honey supers are on a hive during a honey flow. Therefore, honey supers generally do not contain honey comb that has been treated with chemicals. So, although there may be a lot of commercial beekeepers using chemicals to treat their bees for diseases, the vast majority of beekeepers do not regularly melt and sell their foundation wax. And, most commercial beekeepers use plastic foundation that is coated with beeswax and is not melted down.