Sometimes we do, or to avoid all kinds of specially designated species. There are reams of complaints throughout construction history about being unlucky enough for your bright new infrastructure project to be heading right for some politically or socially de jour habitat that activists decide they want to protect.

Who's to say that there doesn't exist a cosmic version of Greenpeace that has been actively pamphleteering some galactic government into not star-lasering(1) our little green and blue anthill to a husk for its latest celestial mega-infrastructure project?

https://www.youtube.com/watch?v=tybKnGZRwcU