Aside from naked display of cognitive dissonance which you have already pointed out, this thread is self-goal for some members from our Eastern border.
For starters it is rather naive to equate GDP per capita directly to wealth of Tibet or Tibetans.
For example Indian state of Kerala for 2013 has GDP percapita of $1350 i.e approx 1/3.5 times Tibet's GDP and has approx 10 times the population.
Despite which the HDI of 0.790 for 2008 which greater than whole CHina's HDI for 2013 i.e 0.719 and that of Tibet's for 2010 at 0.569.
Hence despite having higher GDP per capita of Tibetan than Keralite, the quality of life of a Tibetan is poor.
So that begs the question if the money from Tibet region is not going to development of Tibetan lives, then where is it going?
http://www.economist.com/news/china...-questions-about-rush-regions-resources-price
This gorging of Tibetan natural resources for benefit of rest of China, comes at another cost :
ethnic Han Migration, which is credited for ethnic tensions in Tibet and Xinjiang
The whole idea is hiding the actual plight Tibetans who despite higher GDP per capita than India, come to India as
refugees.
Another deluded belief is even if there is even actual economic and HDI improvement, Tibetans will be comfortable with Chinese rule, when the real issue is ethnic tensions.
Also, going by above logic Chinese would be very happy under Japanese rule given Japan was rising economic power when China was enduring the massive famine causing death of millions.