The post offers a psychological argument, which may apply to, i.e. describe the attitude of a large number of people. It is not necessarily a factually correct argument, that is: the claims (of lack of merit) may be open to challenge or inherently debatable, or simply false. There are tons of people who make more money than others on entirely meritocratic grounds. Also, there is no system in the world capable of ensuring remuneration that is ethically 100% consistent or is being perceived that way. So a good system, indeed the best system, may have great drawbacks and inconsistencies. But this is not the subject-matter of the present post, whose chief conclusion strikes me as reasonable.