This is a religious shrine in the making.
It's already been moved once. When the strip mall steakhouse goes bust, the marker will be moved again. And again. Each time the marker will become more elaborate. More realistic.
Walter White's story is told in such vivid detail in Breaking Bad, El Camino, and Better Call Saul that he's become the embodiment for the everyman who makes a bargain with the Devil in pursuit of greatness.
The universality of White's story will attract followers from every culture, long after the actors who starred in the show and the writers who created the character have passed away.
Did Jesus ever live, or is he the product of a freakishly good storyteller? Does it matter?