While the spreadsheet might show differences in pay related to certain factors such as gender and age, it doesn't really reflect the most important quality which is how well they produce (e.g., some people code better than others). Is this piece of info somehow encoded in the spreadsheet?

Of course, merit doesn't matter in countries like (the old) Soviet Union. But I only want to work for companies and with people that compensate on the basis of merit and not some otherwise external factor.