I can`t say that he had been justified for his pay(but i can`t say otherwise).
You now sounded like politicians in my country...hahaha. The two still mean the same thing and as for me, Messi justified all the pay.
But it is true

I don`t think that someone except Barcelona top managers can say who got more from their "cooperation". And even they can`t separate Messi from the other squad and calculate correct. And we have to talk not only about money. It is football results, brand name, discounts for other transfers... I don`t think that Barcelona think that it was bad deal.
In this twit we see only one hand of the situation. Even if we remove football achievements and count only money - Barcelona got good money from Messi in the squad. Romano don`t write about it - in such way it wouldn`t be so bright twit.
I like that, Fabricio Romano only played a critic in that post, a reason best known to himself and perhaps his paymasters. I don't trust all these commentators, influencers and journalists, they also receive their paychecks one way or another, or do not just like the person of some persons of interest.
Such posts attract attention. I don`t think that someone would be interested if he wrote something like: "Messi got $1.000.000.000 salary for last contract, but Barcelona got summary profit from his brand $990.000.000(or $1.500.000.000, doesn`t matter)". Nobody will read or repost it.