It, do you consider the Baal haTanya to have been an apikoros c”v? Here is what he wrote (Iggerot Kodesh #22):
My dear friend….”Remember the days of old, understand the years of every generation” – has there ever been anything like this since the beginning of time?! Where, in all the books of the scholars of Israel, whether the earlier or later ones, have you ever seen such a custom instituted, to ask about a secular question, such as what to do in some mundane matter, even from the greatest of the early wise men of Israel, such as the Tannaim and Amoraim…but rather [people would turn to] actual prophets, such as there used to be, such as Shmuel the Seer, to whom Saul went to ask about the donkeys which his father had lost. But in truth, all matters relating to a person, other than something having to do with Torah or fear of heaven, are not apprehended other than through prophecy, and not by a wise man. As our rabbis have taught, “Everything is in the hands of heaven other than fear of heaven…” And when our rabbis zt”l said that people “derive benefit from him [from a talmid chacham] by advice and sound wisdom,” this refers to words of Torah, which is called “sound wisdom” [Translation from Rabbi Alfred Cohen in his article on Daas Torah]
Being that we do not have prophesy we must rely on professionals. For example, if we want to know if someone must eat on Yom Kippur we ask a doctor, even if he is not Jewish. Similarly, in matters of Economics we ask economists. The Halacha, as Rav Chaim David haLevi says, only sets the goals, not the means.