Ok, let me break it down to you. I don't mean to offend, it's just that you're either doubling down or simply not getting it. I don't know.
Here goes...In Italy, there are many divisions. The highest division pays the most money. The lowest division pays the least.
Your data takes into account the salary of players at every level. That means that rather than simply looking at Mika's peers, your data also takes into account those who are not.
That's flawed data. And sorry, but that makes your assumption nowhere near an educated guess. It's just a guess based on flawed data. I'll take the post you linked to instead for educated guess.