He's a pal of the World Bank and IMF people, wants everything regulated by the government and governments regulated by suprastatal institutions such as the EU's, the WTO, the IMF. Soros is a sponsor of the Obama OfA, the anti-Trump campaign and other leftist causes. Hence the "Facebook can influence elections". Here's a more complete list of why:

http://humanevents.com/2011/04/02/top-10-reasons-george-soro...

I don't like Facebook, never had an account and have mixed feelings concerning Soros. He invested a lot of money in Eastern Europe that ultimately created a civil society (good) but also sparked leftist sentiment (no so good). I feel that over regulation and too powerful governments are ultimately bad for society. This isn't an open society, it's quite the opposite. The civil society and the ONG's are too fragmented and too dependent on outside financing to create the checks and balances required to keep governments and politicians from abusing power.