The other replies are now wrong. Advice has started to change. It's now believed that finishing the course after the infection has been treated and eliminated drives antibiotic resistance. Rationally thinking about it you can see why, more unnecessary antibiotic exposure to bacteria both in your body and in the sewer/environment where you excrete the antibiotics
How many "billionaires" actually have a billion dollars to spend though? They usually are "worth" a billion dollars through stocks they can't sell, with a couple of million in the bank
Their* value, jfc these editors