I don't try to change people's opinion about BTC, if someone has formed an opinion about BTC, it is because of misinformation and negative news they have read about BTC online, but i also know that such people who have read the wrong information about BTC have also read the correct information too, but they have come to the conclusion on the one they want to believe, and i don't try to change that. I don't think it is possible that someone who has formed an opinion about BTC was only able to read media misconception, they must have also read accurate information about the network, so if they have made their choice, i can't try to change it. Not being selfish, but i concentrate more on my own development and knowledge in the network.