He was condamned for impiety in Athens but he also was included in the list of the seven sages. Those seven sages where philosophers wich became quite iconic, and had a phenomenon of vulgarisation associated with them. Each of them were linked with a series of simple sentences/advices that could be used by anyone. So to simply view him as a "Blasphemer" is quite misleading. The roman elite was more or less hellenized so it shared the greek view of Socrates as one of the great minds of the past. Indeed a mosaic of the seven sages was discovered in a villa in southern gaul. But as I thought of it Socrates is even more important because he was originally not in the list of the seven sages, but replaced one of them.

One funny exception in the depiction of the seven sages is a painting in latrines in Osita. The sages were depicted doing and saying sentences linked with digestion and defecation. Sadly we have the name of only three of the philosophers, and Socrates in not one of them.