In one instance, MC assigned a brutish military officer to aid in the market... It's not like there can't be reasons for this arrangement, but in the end the benefit was that she unearthed treasure that would've remained buried if not for her presence at that time... Such a thing cannot be predicted at all.

I can still picture a reasonable conjecture if MC took time to understand the territory, the families living there, their history, architecture, etc, plus some insights from the game. Author could've spun a tale to make finding that treasure a known variable. But he didn't.

MC and his Lord discuss how to administer the newfound gold, around 7000 G. MC supports the Lord in distributing it to the population, something he himself doesn't believe is right.

The territory itself, from the top down, is precarious. Even natural disasters are mixed in with the misfortunes. Administering disaster relief is still fine, but it's a bottomless pit, are 7000 G enough? MC himself scraped together 75 G around the territory. Assume it's a typo and he earned 7.5 G, it still means that 1000 people that are as lacking as MC can possibly amass this much wealth from the population by doing tasks, so there's no reason why the territory should run on less than a few thousand gold. This 7000 G is a drop in the bucket by this estimate.

The castle is about to be invaded. MC suggests an old man with no military experience lead 1300 soldiers to meet against an army of 8000 led by an S class general. These are not spartan warriors blocking a narrow passage, it's plain suicidal and no sane man would follow this order.

You would think the old man could've led the army with unexpected brilliance in tactics or buy time in some other way. No, what actually happens is that a mercenary company no one expected to appear, showed up in the nick of time and seemed to be there for the old man, promptly helping when recognizing him.

What in fact happened is that the mercenaries were moved by such a benevolent ruler that invested a "large amount of money" for disaster relief. They even mentioned that if done by a powerful ruler they wouldn't be as moved (cutting off the question as to why they didn't join the benevolent and powerful ruler already in existence)

Later on, they swear fealty, but we're talking about more than 10000 mercenaries. The maintenance of a trained army is no joke, let alone such a small, barren and disaster struck land? But that's what happened, they simply joined in and that was that.

MC's "intelligence 100" acts up again and he backs a suggestion to send troops to the north for defense. The prompt is that the suggestion is "almost there", so he arbitrarily thinks that part of it is true and another is false. The true part is to send troops, while the false is to send them to defend, because as he attested, it's needless.

However, MC has no reason to make such an assumption, because the predictions previously made had been much more outlandish and, without his interference, they went well. Which part of sending an old man with 1300 men to fight a good general with 8000 seem right? Yet it went well. Which part of sending a pure military woman to deal with commerce seem right?

Besides, MC was evaluating the best course of action. An "almost there" could either mean that the action was incomplete, or that it was something like second or third best action, with no possibility of development.

MC's rationalization makes no sense.