Here is the most famous depiction in art of the death of Socrates, by Jacques-Louis David
Close up of his friends by his side trying to convince him to not drink the hemlock, to admit he was wrong, but Socrates died for his beliefs rather than their renuncification, and this is why we remember him.
I even think about the word 're-member' we reflect on them hundreds of years later, I wonder how many people who did what they were told were remembered.
Above by Jean-Francois-Pierre-Peyron
Above by Jacques-Philip-Joseph de Saint-Quention
(a lot of men named Jacques were painters apparently!)
All pics from the wiki commons