Atheism does not necessitate a lack of basic morality. It necessitates a lack of belief in the supernatural without proof. The moral relativism and other absurdities are incidentally held by atheists in western society; they are not fundamentally tied together the way altruism is to Christianity or discipline is to Confucianism.
Also, Egalitarianism is another strange one to throw in. Again, try not to drag in our current bullshit where it doesn't fit. The Egalitarian idea of everyone is treated fairly (eg under the law) and everyone has the opportunity to succeed, these are good. These are how the USA rose. This is frankly the basis of meritocratic systems and the key to real success and to proper capitalism. What China did NOT have is the perverted pseudo-Egalitarianism where everyone needs to be rewarded the same, end up with the same outcomes, or enjoy the same quality of life. It was not the responsibility of the central or provincial governments to coddle the weak; if you were born at a disadvantage (eg dumb) too fucking bad. Equal opportunity Egalitarianism necessarily means the fit will rise and the unfit will suffer, unless you're perverting it with socialism or something similar.
Egalitarianism and Atheism are not inherently poison the way moral relativism and modern multiculturalism are.