1. why is it directed at making money rather serving society? 2. Why does it glorify the rich rather than the "lowly workman" mentioned in the intro to your wikipedia link? 3. lots of evidence against it
The first two of these are even less convincing given that background of a religion that condemns the accumulation of wealth ("eye of a needle" etc.) and literally worships a "lowly workman".
As for evidence, this section of the wikipedia article: https://en.wikipedia.org/wiki/Protestant_work_ethic#Criticis...