It's uncanny, I'm in the exact same situation, but the converse. When there is such a huge gap in knowledge, experience, accomplishment, self-assurance (especially that align with patriarchal gender disparities) how do both navigate so that the one partner is not imposing on the other and overly influencing them.
Bottom line, I think it's an artificial issue. A person who fears dominance by a loving partner is likely dealing more with internal issues than relationship dynamics. To have a mentor as a partner is a boon and the fact is, anyone can learn from anyone if they're truly interested in the person, so it's rarely a one-way street even in the most superficially imbalanced relationships.
Be yourself. For which you need to know yourself. Maybe you're so clueless about yourself that getting to know yourself while worth a person you admire and seem to wish to emulate at the expense of knowing your own desires is not possible. Hogwash. The qualities you listed in him as admirable are nothing more than a reflection of your desires and values.
Take it easy. You're fine. Stop this ridiculous obsession of your generation with co-dependency. Unless you don't know how to file your taxes, do your laundry, hold down a job, manage your life, etc. without him, bask and learn from his qualities and achievements that you laud.