In parashas Tetzaveh, we read that G-d instructs Moshe Rabbeinu to instruct to Jewish people to bring him pure olive oil:
And thou shalt command the children of Yisra᾽el, that they bring thee pure olive oil beaten for the light, to cause the lamp to burn always.
The Frierdiker Rebbe, Sefer HaMaamarim (תרפ''ח) observes the same: why was the oil brought to Moshe and not to Aharon, who was intended to kindle the menora later on? In the Maamar ViKibeil HaYehudim explains, and the Lubavitcher Rebbe in the maamar Ve'Atah Tetzaveh, explain that Moshe is, as kabbalah and other sources calls him, "the faithful shepherd" - רעיא מהימנא. This is one of the reasons why the oil needed to be brought to Moshe, since he nurtures our faith.
The Chizkuni gives an peshat interpretation as to why the oil needed to be brought to Moshe instead of Aharon, but I'm not satisfied with that explanation:
ויקחו אליך, “they will bring to you;” in order that you will be able to see inside the Tabernacle when you enter it and when you wish to leave it.
There are some chassidische seforim that explain that the oil refers to wisdom and that Moshe Rabbeinu was the one teaching all of B'nei Yisrael the Torah, every individual. "The path of a tzaddik is to teach Torah" (Avodas Yisrael; parashas Tetzaveh; first explanation). However, even if we take the direction that the Avodas Yisrael takes, e.g. that oil is a reference to wisdom and that Moshe was teaching every single individual, that still does not explain why the children of Yisrael needed to bring the oil to Moshe. Wouldn't it be more logical that the oil was Moshe's wisdom in Torah, and that he spread that?
Why did the people needed to bring the pure oil to Moshe and why not to Aharon? Please use sources and contemporary sources are very welcome. (yes, it might be completely logical that it was brought to Moshe, but hey, there are שִׁבְעִים פָּנִים לַתוֹרָה :)).
Side note: I’ve already learned the Maamar Ve’Atah Tetzaveh. I understand the concept both Rebbeim are teaching us in their maamarim, but I am looking for a more "ready-to-understand" answer, The Rebbeim use kabbalistic concepts, that I find difficult to understand when reading it. In Likkutei Sichos, the Rebbe says that many meforshim make the same observation: why was the oil needed to be brought to Moshe?, so far, I was able to locate a few, but none of them answeres the question.