Medea Sarcophagus?

Killing some time at the end of the day, I’m looking at the recent results of Sotheby’s Classical auction … among the many interesting items therefrom is this bit of a marble sarcophagus, apparently depicting Medea and her two kiddies:

Sotheby's

… which got me to wondering … other than perhaps a famous actor or someone who actually performed as Medea, why would you want this scene to be gracing your final resting place??