Well basically MC is invincible, not sure why he's worried in the first place since we know damn well he's a partial sociopath
Just jump into the orcs if you're gonna "lose" the fight
@johnpoop2529 No problem, and that's also explained later in the WN.
He has to reign himself in and not let his greed get the better of him, or he'll spiral out of control on a power trip and effectively rule people through fear.
Explanation of that is
He loses his cool once against some guys that threatened Elena, tears them to shreds and regrets it later heavily, imposing more regulations on himself to make sure it won't happen again, lest he lose whatever semblance of Humanity he has left.
The manga may end up diverging from the WN, and already has in a couple of places, but for the most part it seems relatively consistent with the plot.