The sources you linked are rather weak evidence for your claims. This type of observational research is difficult, and in the social sciences, especially about political topics, you should be very skeptical. The majority of published papers in this field are wrong. Diversity may or may not be good for companies bottom lines, but there is no conclusive evidence (at least from what you linked) - and it also matters the magnitude of the effect.
Some of these articles are implying a size of an effect that is completely ridiculous, there is just no way that diversity "could increase revenue by 41%" - we'd see way more diversity in work places if this was true. Here is an article with a different conclusion - and here the "educational diversity" only had a more reasonable 2% effect, while "demographic diversity" is allegedly harmful [1]. But you have to be careful, all of these studies appear to suffer from testing multiple hypothesis - breaking diversity down into sub-categories and looking at each one independently should decrease confidence in the conclusions of these studies.
Some of these articles are implying a size of an effect that is completely ridiculous, there is just no way that diversity "could increase revenue by 41%" - we'd see way more diversity in work places if this was true. Here is an article with a different conclusion - and here the "educational diversity" only had a more reasonable 2% effect, while "demographic diversity" is allegedly harmful [1]. But you have to be careful, all of these studies appear to suffer from testing multiple hypothesis - breaking diversity down into sub-categories and looking at each one independently should decrease confidence in the conclusions of these studies.
[1] http://ftp.iza.org/dp6973.pdf