Here is some stateside coverage analyzing why he did something so stupid: http://theweek.com/articles/463249/why-edward-snowden-spilli...
"In the bigger scale of things, Sino-US relations outweigh any information Snowden may have. It is also impractical for China to hope Snowden will co-operate with us. If he wanted to do that, he'd have flown to Beijing," said an expert in Shanghai who requested anonymity."
Looks more like he revealed that we were spying on everyone and ran to Hong Kong because they were a neutral party and you want to spin this into he sold us out to the Chinese to me.
Why did he reveal Chinese telecom targets then? The "expert in Shanghai" is clearly wrong from Snowden's perspective. Hong Kong is outside the Great Firewall and so Snowden felt less hypocritical living in Hong Kong, but it is still under Chinese rule, so he hoped to get Chinese protection by leaking state secrets to them.
" If he truly did it for the good of the world, he'd turn himself in because of the reward he has already gotten by sharing information he felt like the world needed."
This is offensively manipulative nonsense. Wanting to avoid being thrown in a hole and tortured is a normal human response and utterly orthogonal to whether his motives were pure or not.