Because you do benefit from those benefits even if you choose not to have a child. The people working there would most likely not work there if these benefits didn't exist.

> it's impacting everyone else at the business negatively

Clearly it's not. The companies offering this clearly prefer the type of people that benefit from this. And you do as well, as the people taking advantage of this are clearly important to your job satisfaction.

It impacted the business having him be absent for two weeks - I was forced to attend two meetings on his behalf and had to answer a bunch of email.

He could have chosen to man up and not take a vacation, or could have taken his laptop and attend meetings remotely and answered email. What a jerk.

Plus, benefits are often "unfair" in that they help some employees more than others. A sickly coworker gets more out of the health plan than someone who is as fit as a fiddle. Not needing glasses, I get literally nothing out of half of the "vision and dental" package. The tuition benefit does nothing if you're unable or choose not to take a course.