The higher up you go, the more mistakes you are allowed. Right at the top, if you make enough of them, it's considered to be your style.

It's always helpful to learn from your mistakes because then your mistakes seem worthwhile. Garry Marshall, 'Wake Me When It's Funny'  

While one person hesitates because he feels inferior, the other is busy making mistakes and becoming superior.

The man who makes no mistakes does not usually make anything.