Chinese business attitude - No moral No ethics - Just Rude & Greedy !

Labelled with "China Dirt" as it is clear that in general chinese business attitude is simply DIRT.
Now almost 15 years here & I cannot see any change into something positive with most of our suppliers & I have this confirmed by many colleagues:
Shortsighted Greed - this is the final solution.
Business manner ? Ethics ? Moral ? Behavior !
These words are not existing in Chinese Language !
Short story here:
One of our main suppliers since 5 years - we always paid him upfront (as he always complaining need money).
Suddenly we find a lot of other goods (not from us) in his factory.
90% of his capacity was used by us. All material supplied by us.
So today he is telling us a big bull shit of  his losses blah blah blah ....................
And he does not want to continue with us (actually the last 5 years we made him survive & build up his facilities). Do not await any words of thank !
His new customer a local internet seller on Tabao or whatever kind of internet service is placing so
big orders to him. As he is saying full of PRIDE !
We have borrowed him money all the time ...............
He is holding a lot of stock fabrics of us !
I have already told him today:
Once the door is shut - you never ever ask me again to give you some orders !
That made him rather nervous !

Clue: All the books want to tell you the truth of China Business Etiquette - all rubbish - just scratching the surface !
Once you have to deal with the real Chinese - then you will find out better !
Be careful !
By the way - do not forget this:
Most of the achievements made in China business over the last 2 or 3 decades - ALL WAS COMING INITIALLY FROM THE OUTSIDE by placing it to them.
Conclusion: The big bucks they are making is also coming from the outside.
Innovation from China - barely non - existent.
The only point is COPIES.