Why is Diego Maradona praised more than Lionel Messi?

A relative recently visited Argentina as tourist not so long ago and the people there glorified a former World Cup soccer cheater (he used handball against England) and drug user. That's a bad example for young people. In comparison Lionel Messi won the soccer World Cup fair and square, doesn't do drugs and is a stable, married man with kids.

What's wrong with that picture? That's rare to find; someone rich, a known soccer celebrity and humble person at the same time that doesn't cheat and is loyal to his wife.

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When someone cheats on anything to win or achieve (whether it's on a game, on exams, on research projects, etc), that actually makes me lose respect for them. I don't like unethical people.
Why is Diego Maradona praised more than Lionel Messi?
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