Honestly I think it really depends on the person. It's good to have some self confidence but if you're relying on someone else to give you that boost, you may be walking a thin line between remaining somewhat humble and appreciative or becoming addicted to the attention and praise which will lead to the narcissistic tendencies. I don't think social media is turning everyone into narcissists but it's definitely a double edged sword. If you look at artists that create music or characters in media, a lot of times you get a sense of who is doing for the sake of the art and who is looking for the fame and attention. It surprises me that those who are definitely in it for the attention last very long. A few people come to mind but I won't mention names.