A statue, a bust, a park, a hospital, an athletic field, a bridge, a highway ... naming such things in memory of notables and philanthropists is not unusual.
|Milan's Duomo cathedral|
Gargoyles are fantastic carved representations that were and are used to convey water away from the structures they adorn. In church mythology, they were intended, as well, to convey a sense of evil to a largely illiterate audience: Evil was kept outside the church ... and you'd better remember that evil is waiting to pounce, in this life of the next ... and put some money in the collection plate.
Gargoyles have sass. Tombstones do not. If I were going "to be remembered," I would rather be remembered for sass than gravitas.
Your post put me in mind of an incredible statue that is housed by Milan's Duomo. Some pictures of the work can be found here...
St Bart was reputedly flayed alive and the statue depicts him carrying his own skin. I've no particlar point to make about this especially.