According to Pope Francis and/or Catholicism, what sins are more serious than sins of the flesh?

Pope Francis, was quoted about accepting the resignation of a French Archbishop following on his recent trip to Greece: > “small caresses and massages that he gave to the secretary.” ... Francis added that this “is a sin, but it is not one of the most serious sins, because the sins of the flesh are not the most serious.” > > https://www.ncregister.com/cna/pope-francis-says-he-accepted-paris-archbishop-s-resignation-on-the-altar-of-hypocrisy So, if you summed up his other statements and works where does it seem that the Holy Father ranks sins of the flesh and how does that compare to the traditional teaching of the Catholic Church?