I don't take position yet. That one person shows a flag doesn't mean he's in favour with ALL in his country. I feel proud of my country, though horrible things happenned. Flags don't represent just the politics of a country, it represent tradition, family, culture, music, land, etc.. It's not all about politics.
One can show a flag as a way of saying thanks to all the people that supported a driver. A driver, as Webber, gets lots of support from his local fans. As a way of support you show the flag regardless of current politics.
If USF1 had a car, there would be probably Jose Maria Lopez driving for the team. Pechito Lopez had secured fundings from the government. Would you believe it would still be bad to show the flag?