Not leave things up to chance?! Is the universe not inherently probabilistic? I'm guessing you mean make things a little more deterministic than they are now in terms of human evolution? Maybe, but I think its important to ask whether or not we already exist in some sort of thermodynamic equilibrium with the rest of the universe (on an evolutionary spacetime scale).

I also think it's not totally accurate to say that most species have gone extinct vs have evolved into something else.