Word for wise person who can see the big picture when others cannot

The professor was visionary:

with the ability to imagine how a country, society, industry, etc. will develop in the future.

(Cambridge Dictionary)

In British English the word is far-sighted.

far-sighted adjective UK ​ /ˌfɑːˈsaɪ.tɪd/ US ​ /ˌfɑːrˈsaɪ.t̬ɪd/

far-sighted adjective (WISE) ​

uk having good judgment about what will be needed in the future and making wise decisions based on this:

Buying those shares was a very far-sighted move - they must be worth ten times their original value now.

https://dictionary.cambridge.org/dictionary/english/far-sighted

However I believe that farsighted in American English may have a different meaning.

EDIT

Based on discussion in the comments below and thanks to the link provided by Chappo, I quote Merriam-Webster. However I also note that Timbo would assume hyperopia by default. I defer to native speakers of AmE in their knowledge of their own version of English.

farsighted adjective far·​sight·​ed | \ˈfär-ˌsī-təd \ Definition of farsighted 1a : seeing or able to see to a great distance b : having or showing foresight or good judgment : SAGACIOUS 2 : affected with hyperopia

https://www.merriam-webster.com/dictionary/farsighted

You can say that the professor was ‘luminary’ - a shining light that inspired or guided others, or illuminated their path.

Definition: ‘a person who inspires or influences others, especially one prominent in a particular sphere. "one of the luminaries of child psychiatry" synonyms: leading light, guiding light, inspiration, role model, hero, heroine, leader, expert, master; More’