Everyone is perfectly suited to their perceived environment. Of course, since no organism is perfectly suited for its environment (lives forever), any perception is false. So right now there is no real consciousness.

What we do when we're no having sex/giving birth is important, too, of course. It's not the case that sexual reproduction is the only important thing in the world. Perhaps it is the most important, but other disciplines exist outside of it qualitatively and progress quantitatively independently.