Those people thought they were righteous based on their works, but were not genuine converts who trusted in Christ alone for salvation. Apart from the righteousness which is of God by faith, their sin remains, hence the evildoers.
Nope.
Judgement is about what you did or did not do
Matt 25:
37Then the righteous will answer Him, ‘Lord, when did we see You hungry and feed You, or thirsty and give You something to drink?
38When did we see You a stranger and take You in, or naked and clothe You?
39When did we see You sick or in prison and visit You?’
40And the King will reply, ‘Truly I tell you, whatever you did for one of the least of these brothers of Mine, you did for Me.’
41Then He will say to those on His left, ‘Depart from Me, you who are cursed, into the eternal fire prepared for the devil and his angels.
42For I was hungry and you gave Me nothing to eat, I was thirsty and you gave Me nothing to drink,
43I was a stranger and you did not take Me in, I was naked and you did not clothe Me, I was sick and in prison and you did not visit Me.’
44And they too will reply, ‘Lord, when did we see You hungry or thirsty or a stranger or naked or sick or in prison, and did not minister to You?’
45Then the King will answer, ‘Truly I tell you, whatever you did not do for one of the least of these, you did not do for Me.’
46And they will go away into eternal punishment, but the righteous into eternal life.”