What about the Oklahoma Broadway Musical show makes it the shows it is now?

In “Oklahoma!” the musical found a new form. This “integrated musical” marked a revolution in American theater. ... The score was so popular that it became the first musical to have a complete original cast album by a major label, beginning the trend of recording original cast albums.

i believe the answer is  the similarity is that both are sacrifices which have the same purpose and sacrifice - jesus christ, but the difference is in offering of that sacrifice.

the similarity is that both are sacrifices which have the same purpose (repenting our sins) and sacrifice - jesus christ.  the difference is in the way of the offering that sacrifice. the sacrifice of jesus on the calvary is sacrifice of his actual living body and blood, but the sacrifice of the mass is the sacrifice of the jesus through bread (body) and blood (wine). in the sacrifice on calvary jesus was offered for us; while at mass he offers himself through us.