And Messi has 4 international player of the tournament awards. He's also the only player in history with multiple World Cup golden balls.
This isn't a debate. One is among the best performers on the international level in the sport's history. The other couldn't ever do it at the World Cup.
I think Messi is the best I've ever seen by some distance btw, but this point I think is overstated. However there's pros and cons.
The WC has a 92 year history. That's 23 World Cups in history. Let's unpack it a little to be objective.
As per the wiki:
The current award was introduced in the 1982 FIFA World Cup, sponsored by Adidas and France Football
That's 10 world cups (40 years of WCs hosted every 4 years).
You're basically saying he's won 20% of all Golden Balls.
The World Cup happens so irregularly, and the Golden Ball is still a recent memory that of course in terms of rarity it sounds impressive but maybe not.
Pros
There's hundreds of players and someone in peak form can win it in a year, through scoring a lot of goals, so Messi winning it twice is a testament to his longevity 2014 and 2022.
In terms of rarity its probably the rarest prize in football or one of the rarest, since one player at a WC can take it home.
Negatives
However, It's such a new award that it's only been handed out ten times. If this was awarded in all WCs since the WC started 92 years ago more players would have won 2 golden balls and a WC.
What makes it impressive to me is Maradona only won one when he had stand out tournaments multiple times, but I don't think the sample size is large enough to be significant.
Messi has been stellar for 3 WCs though in my eyes, not taking anything away from who I think is the GOAT seen him play in person many times. But I just don't feel its been awarded enough, it's such a tiny slice of footballing history.
Football only got heavily commercial in the 1970s and Adidas started to get their fingers into the WC.
Taking nothing away from him though, it's just say you take the Nations League as an example you can say Portugal have won 50% of all Nations League when only 2 teams have been awarded it.
FYI no player has ever won more than one Golden Ball though before Messi, it points more to his longevity in the era of modern football which I think its amazing.