I think the difference is that people can choose to be wicked or not, since we have free will. So even if you are wicked now, you can mend your ways and be good and the balance of your life is what determines if you were wicked or not. According to some religions, you can be wicked your entire life, then recant on your deathbed and all is forgiven. Bunch of bullshit.

But it's what makes humans greater than angels in some accounts, since we have the choice to be good or bad, so if we choose to be good, it's even better than being angelic, who have no choice about being good, they simply must be good.