This is the 1599th most frequent Russian word.
такими
"Такими" means "such" or "like these" in English, indicating qualities or characteristics.
Here, 'такими' is employed to stress the adjective 'важными', asking for a justification of their importance.
Почему вы считаете эти идеи такими важными?
Why do you consider these ideas so important?
The word 'такими' modifies the descriptive term 'великими учителями' to emphasize the extent of their greatness.
Эти люди стали такими великими учителями.
These people became such great teachers.
'Такими' is used to describe the degree or nature of the adjective 'плохими', highlighting an unexpected outcome.