Transmissions received from Alpha Centauri consist of meows and maus in many different dialects indicating that there is, indeed intelligent life out there.
Takeover by inferior beings won't be allowed by the supreme cats, while themselves are too cultured to want to enforce their will on others, which is the reason humans have their way.
Way beyond the Great Galactic Barrier lies a civilization yet undreamed of and without the types of evil we have here on this 3rd rock from the sun, such as greed, envy and sloth.