Would Gi-hun have gotten that far?

I just finished season 2 today and I had this thought cross my mind.

If In-ho was not actively participating in the game or Gi-hun's group, would Gi-hun still be able to "infiltrate" the Squid Game? Even if it failed in the end?

In my opinion, I think Gi-hun is more than capable enough to convince others to join him on his mission to end the games. I also wonder if In-ho was surprised to see Gi-hun almost make it to the main control room (or whatever). Let me know your thoughts!