Napoli's focus only has to be a champion regardless of defeat or not. I don't think it really matters too much, the most important thing is that Napoli win.
It's been too long since Napoli had to lose and last lost when they won 3 decades ago and at best they were only in position 2. Now is the right time for them to be able to bring back a trophy with a very big chance. Regardless of losing a few times or not later it doesn't matter, the important thing is they can continue to stay in the top position now.
What can be seen now is that Napoli are unbeaten in the 15 matches they have played this season and Napoli still have enough capital to become champions in Serie A this season if they have to lose several times. Because the number of points that Napoli has is very good for capital in the second half because they are also very aware that other teams will try more in the next match after the world cup so that Napoli will also continue to maintain their best performance during this season so as not to just drop after World Cup.
I personally still feel that Milan's current condition is still not possible and even Juventus before this international break played very well but they are currently facing a big problem so I am also a little skeptical about that.
Only Inter remains in my opinion the most likely but can Inter do it? This has to be seen because if Inter can't catch up and improve their form I think Napoli will be a bit more comfortable.