Well making a character worse by your presence is worse than your presence having no effect on the quality of a character
Tho a gentle reminder
No one gave a shit about King before he faced Zoro
When he faced Zoro Oda gave him layers like Lunara Powers, called him a good, gave him good back story and the Run way model looks. People started caring about him, then he got the best animation in the series
People quite literally respect Kaido more than he faced Luffy, he had an air of invincibility about him but then Oda turned Kaido goofy, gave him drunk mode and ruined his ass
People Like Kaido more before he faced Luffy
Poeple like King more after he faced Zoro
So in Wano alone
Zoro made his opponent better
Luffy made his opponent worse