Good news is his company only has licence in USA so it's insurance companies and those paying for insurance that will take the hit. And those people in poorer countries will get non generic drugs at a much cheaper price
A lot of people have healthcare cover in the US as there's no NHS. If you get healthcare provided in your work, then company healthcare costs will dramatically increase. Those companies will then have to raise prices. It's not really good news, if all drug companies take similar lines it could have a global knock on effect.
Besides that, lifesaving drugs should be affordable by those that need them. Of course I'm not against companies making a profit, I'm all for it but to raise the cost from $13.50 to $750 for a tablet that costs $1 to make is beyond belief.