Totally different set of factors. Tibet depends, apart from a miniscule tourist element, almost totally upon subsistence agriculture. It has no mineral wealth, a very small labour force, no industrial infrastructure, impossibly large natural barriers to physical infrastructure development of any kind and has no strategic geographical importance other than militarily as in occupying it means nobody else can, without a fight anyway.
There would be no benefit for the Chinese in adopting anything other than their current mode of use of and conduct in Africa in developing it for their own purposes as a provider of cheap labour, minerals, products and eventually, services.
As an aside, China's biggest headache militarily is defending the coastal plain east of the mountainous regions in the west: slap bang where the US has decided to start ramping up it's 'support' for the region. Who'd have thought.