The unrighteousness of men is never more evident than when men refuse to acknowledge that God is the supreme person of the universe. How do they do that ? In an age of scientific evolution, which is just an extension of the age old Pantheism that confuses the eternal, self-existent, all-powerful God with His creation, it is painfully obvious.
Man in his sinful condition could never merit heaven anymore than he could create himself. It is only man's sinful pride that tells him something different.