The mean or common man, ‘adam,’ or ‘aadaam,’ is a reference to stature or rank in society, referring to the lowest of ranks, as in those who live as peasants or in poverty, the very destitute of peoples.
The great or important, ‘iysh,’ refers to the greatest of the greats. Those who are of high ranking, the wealthy, the highest of offices as in royalty, or celebrityship, or people of high honor or privilege.
Together, both of these terms refers to all peoples in all ranks of society, leaving no one out, excluding no one, including everyone.
And so, evil or wickedness reaches out its arm to entrap anyone and everyone. No one is exempt from its traps or influence. Certainly ones status is not a defense against evil.
The rich and high and mighty can be entrapped just as easily as the poor. The poor can be entrapped just as easily as the high and mighty.
All people are comprised of dust (biology). No sample of dust is better than any other sample of dust. No dust can say that it is any better than any other dust.
All people are comprised of a living soul. The soul comes from God and the human life contained within that soul comes from God as well. The human soul has phenomenal capabilities. The human biology has phenomenal limitations. The evidence of this is in the many aspects of human capability that we can witness in this world.
Some folks possess phenomenal capabilities, others possess not so good capabilities. The common barrier in all, is the human brain and body (genetics) which imposes various levels of limitations on human ability.
One day, the human body will be replaced with a resurrection body (your soul will not be replaced with a better soul) and that will eliminate those human physical and mental limitations.
But for now, all manner of society is susceptible to evil and its influences. And especially everyone who ignores or rejects truth on a day to day basis.
Again, in the future all believers will be living in heaven and will possess the indwelling of all members of the Trinity, and that, together with the elimination of evil (all gone to the Lake of Fire), will give each one of us a huge advantage in being able to maintain truth as the focus of our eternal lives.
But for now, we all have human limitations. We are all susceptible to evil and wickedness. No one is exempt.
And here, Isaiah gives firm warning, that no one, who accepts evil as their way and pattern of life, will be let off the hook for their choices and decisions and actions in life.
The word for forgive, ‘nasa,’ has a wide variety of meanings and here forgiveness means to look away as though nothing ever happened, to not hold accountable, to not punish and so forth. And so that it is very clear, every person is going to be held accountable and punished as is appropriate for them.
God holds no favorites. God will not treat anyone with bias, but will treat the low as well as the high, with equal deference, and justice. Neither the low nor the high will have an advantage or a disadvantage when it comes time for divine discipline or judgment. All will be held accountable.