At what point in history are you talking about? Certainly those in the Americas for instance did not hear these things until relatively recently. And then God didn't provide enough evidence that it was him who gave those commands so there wasn't that much people to follow them in any case.
Not everybody has heard. Especially tribes in remote areas of the world.
Of course not. But we do blame them for making a faulty device, which is the case in this discussion.
What consequences are we talking about here? Cause and Effect or a person doing the punishing?
First, people who died before Jesus (John 3:13) we know did Not have the opportunity to put faith in Jesus.
Jesus' ransom covers those people because in the coming Resurrection they will have the opportunity to know and choose about Jesus at that future time - Acts of the Apostles 24:15.
Plus, notice at Matthew 24:14 it is about earth's 'nations' (so Not every individual because new people are born daily).
As far as remote areas today: there are local remote translation offices located right where remote people live.
So, people even in remote areas can have Scripture in their own mother tongue or native languages.
As far as those already dead, ' death ' can stamp the price tag of sin as: Paid in Full - Romans 6:23,7.
Those who are still 'alive' at the coming 'Glory Time' of Matthew 25:31-33,37 will have heard about Jesus.
The figurative haughty ' goats ' are the ones who bring ruin to Earth - Revelation 11:18 B.
The figurative humble ' sheep ' are the ones who can remain alive on Earth and be here to see calendar Day One of Jesus' Millennium-Long Day of governing over Earth for a thousand years.
Jesus as the person who executes the 'goats' - Isaiah 11:3-4; Revelation 19:14-15
Thus, making Earth safe for humble meek people to inherit the Earth as promised at Psalms 37:9-11; Matthew 5:5