So you want government to determine Profit margin then? I don't see what' the problem here. Even if they buy goods in Penny then can price it 1 million. It's consumer's duty to determine whether or not they should buy that product. If you think the product is expensive then don't buy it. Isn't that so simple?
You can see price variance all the time in US too. Those government official were lucky that they didn't get hurt physically.