I really don't understand why the overseas prices are lower...I don't care either.
There is no reason that US citizens should not pay the same price. (yes, I'm annoyed over this)
I know you said you didn't care, but...
Let's say, after spending a billion or so developing a new drug, a company can produce each pill for $1. Now let's say in the US customers will pay $50 each, but in East Crapistan they won't pay any more than $2. $2 is not $50, but it's still profitable.
It seems unfair, but consider the alternatives. Force the company to sell at the US price everywhere, and people around the world won't buy the drug and US prices go up to make up for the difference. Force the company to sell in the US at the lowest international price, and they don't spend the money to develop it in the first place, so no one gets any.
MR=MC