I read this review about reviewers

Don’t know. Probably not enough. The apparently unregulated mortgage industry during teh Bush years specifically were the culprits. But it resulted in a lot of additional regulations being put in place to at least help that are still somewhat there TTBOMK but I read Trump administration had rolled them back somewhat again early on. The company I work is primarily investment services.....does not deal with mortgages. But the resulting stock market crash had a big effect for all.

Financial services industry is highly regulated even more so since the 2008 debacle. The guidelines are well documented. Violations are not tolerated. At least at reputable companies. Everyone where I work is required to take ethics training every year and expected to follow the guidelines. 

If the guy took time to do a review and the company benefited, would be nice to send a token of appreciation but there are also ethical issues to consider in cases like this. In general reader expectation is that reviews are unbiased and reviewers not compensated. So it can be a very fine line that gets smudged up easily.

The actual state of ethics in the consumer electronics  industry or any ethics rules that apply to that is a mystery to me. Maybe others have experiences they can relate. I know the industry I work in (financial services) is highly regulated and ethics violations will get you fired pronto but most industries are probably not so tightly regulated.