""It is the absolute opposite — psychological weakness and fragility.""
...so... ARE WE GOING TO SNEER AT WEAKNESS AND FRAGILITY??? It is there for a reason. How are we going to work with it? Who is going to offer the helping hand? Are we going to sneer at him/her? Admitting a mistake is a skill. It needs to be trained. People who admit their mistakes are grilled by those who do not admit their mistakes. When you observe this spectacular issue, you should observe it from all possible angles. I do not mean YOU=somebody-who-mentioned-Rousseau, I mean the people who are eager to sneer at anything they do not know. Ignorance is the most dangerous enemy of any progress.