Bro, our situation is really not good till so far. Our Gini coefficient is very high in east area and Engel's Coefficient is very high in west area. In this case, people don't want to migrat to west area, east area become more and more crowded. Even a hundred million of Chinese the rich tour to foreign countrys, they don't want to tour in west China. How the west develop? How the western parts attract talented persons, if there is only advertise, it won't be workable.
Yes, it is not that good. So it is a caution to us. But still there's something you should know.
1.There do exist a strategy or long term policy of macroscopic readjustment, see Belt and Road, CPEC, Development of mid and west, silk road, there are all great and huge plan.
2.The characteristic of urban-rural dual economic structure in China. see Premiere Li's paper of doctor degree.
3.Industry transfer and relocation. see the middle and west provinces's reports of outcome.
4.social insurance policy includes all farmers and argricultral subsidy to farmers/village/argriculture. The 1st file of the state concil is about farmers/village/argriculture(三农) almost every year.
5.The gap between east and west is and will gradually filled, this is also a long procedure. Same to the gap, the differences of economic effectiveness do exist.
Think above issues over will help you to figure out something, further more Mr. Gini and Engel's models do not thoroughly fit for China. I have to recall all my macroeconomics knowledge to answer your question, but these can answer your questions.
BTW, let me fix some of your points. The west do exist some hot tour places. see Xizang, Xinjiang(many places), Gansu and Ningxia, and yes Sichuan belong to the west China, it's tourist‘s heaven. Maybe you just don't know, try to travel around our country, good place in the world.
There's also an important message to tourists that is 人一生中一定要有一次去西藏的朝圣之旅,以重新认识世界和自我。(朝圣主要指接近高海拔和低含氧量圣地,接近天堂和雪山之地,并非包含宗教含义)。
Please be more positive to the reform of the economy and the structure. Right on the way.
Another suggestion is talk after research.