"To his own detriment,

Niceness is detrimental in politics.

Then he will call for detriment,

Such impacts may even be detrimental.

Parents Responsibility and Protection from Detrimental Practices

"He's too nice. " That's considered a detriment.

Chemicals are beneficial as well as detrimental.

This practice is detrimental to their health.

A detriment to unit cohesion and morale."

I believe that it is detrimental.