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No, that's not what science tells us is going on. There are no in-person cues that tell someone their behavior is unacceptable or must be controlled:

- Other people watching (no social cost)

- No facial expressions or body language from others triggering mirror neurons that serve as empathy precursors.

- No risk (violence, loss of property, loss of status... etc.)

There are simply too many people that don't consciously monitor their own behavior for right and wrong. Absent those other layers and pressures, we all tend to make unconsciously selfish decisions. That many young people don't think about the morality involved in those behaviors is a failure of upbringing, not nature (IMHO).