That conclusion has been accepted by many as an article of faith ever since.
What until then had been a hypothesis, became an article of faith.
Getting rich may be an article of faith in Wenzhou, but it is not the only one.
Add to this the fact that it is a central article of faith for American conservatism that the whole business of diversity is nothing but a racket, forced on them by liberal elites.
Concern for all things lowly was almost an article of faith for the Wedgwood cousins, who taught young Darwin to euthanize earthworms in brine before impaling them on a fishhook.