This is a misunderstanding of the job of a professor. (I have some experience here.)
Our job is to teach well enough, to research well enough, and to handle administrative stuff well enough, in a context where any one of those could easily be a full time job and it's impossible to do all of them perfectly.
Having a work pattern in which the less important stuff falls through the cracks while making sure the important stuff gets handled is necessary and common. As long as people understand your pattern and can work within it it's generally ok.
There are a lot of college professors who are just barely good enough at teaching and administration to not get fired. Regardless of how important they think their research is, letting other things slide is disrespectful to their peers and students. We shouldn't make excuses for them.