We all like to see Akira, but remember this kids: the reason why manga like this is good versus all the other crap isekai/reincarnation/cultivation that you see being crapped out across the internet(most likely you're reading these) is because of the character development of other characters-NOT just the MC. If you want just some dumbass who gets strong stumbling everywhere, getting SSS rank and going on a flex parade throughout the story, go somewhere else. But for some of us who prefer "real manga," this pacing is right. Plus, its not even that much that they focus on Katsuya.
I don't blame Katsuya. If I was a character and I was designated as the leader, I would take the failure on a different level compared to people who weren't directly impacted due to my actions. From that standpoint, I understand why he felt that way. At the same time, in that kind of world, I'd take a more different approach because I'm pretty sure I won't be lucky enough to grow up in an environment where I can enjoy having friends around and trusting them-you know that camaraderie stuff. His team grew up in a different environment from Akira. Akira's approach is based off living AWAY from comfort, so he's able to distance himself from these kinds of feelings and see things from a more business or risk-and-reward angle because it literally puts food on the table.
Consider the difference. Akira is a player that goes under the radar for the most part but Katsuya have expectations from others--thats a huge strain and directly impact the way how you operate.