What does that have to do with ethics, really? Your argument seems to be that utility should outweigh ethical concerns.
> I see a lot of people promoting sanctions on a country because of government. Who gets hurt in this case? Ordinary people living their life.
So do you think governments were wrong to sanction South Africa's apartheid regime? Do you not think that the ordinary people in South Africa have a better life today as a result of those sanctions and the collapse of the apartheid regime?