Shame is only effective in a society of equals.

If one day you may become my boss better treat you well. If one day anyone may become my neighbor better treat anonymous people well. If my kid may end married with yours then I better treat you well.

For billionaires shame makes no sense. They will never have to confront the people that they abuse. Inequality makes consequences go away. The powerful have not shame because they feel entitled to not need it.

Even average people knows that they only need to care about the powerful. It is better to wrong your neighbor than the powerful politician that will retaliate against you.

Eliminate inequality and people will care again.