Upvote:4
It seems to me that you can get people who are really rotten but, since they believe all the requisite things, go to Heaven.
Yep, although it's not really about intellectual belief/assent, but that the person trusts God to fulfil all his promises and lives as though they do trust God, i.e., repentance.
These really rotten people are in fact every single human person. As Romans 3:10-18 says:
“There is no one righteous, not even one;
there is no one who understands;
there is no one who seeks God.
All have turned away,
they have together become worthless;
there is no one who does good,
not even one.”
“Their throats are open graves;
their tongues practice deceit.”
“The poison of vipers is on their lips.”
“Their mouths are full of cursing and bitterness.”
“Their feet are swift to shed blood;
ruin and misery mark their ways,
and the way of peace they do not know.”
“There is no fear of God before their eyes.”
Every single person in heaven/on the new earth after resurrection is an evil, sinful, rotten human being who deserves God's wrath and destruction.
Many, probably most, Protestants recognise that several Bible passages seem to indicate that there will be different levels of reward in the afterlife. So although we can never merit acceptance by God, the good that we do will be recognised. This page by J. Warner Wallace seems like a good summary of these passages.
To paraphrase the KJV of John 14:2-3, Jesus is preparing mansions for all his people, and no one deserves a mansion, but some people's mansions will be bigger than other people's mansions. But freed from the sin of envy, when we meet someone on the new earth with a bigger mansion than our own all we will do is praise God that he was working in someone's life to a greater degree than our own!