listen to dudley dooright he is a senior

Dudley Henriques formulated the question :
The lift and drag curves for any given wing are a function of wing design.
Although induced drag is a product of lift creation, the design of the wing
could easily change the lift and drag coefficients and make the wing more
efficient.
These are complicated inter-relationships, and sometimes, when doing an
article in a non technical venue, a writer will simply present the tip of the
iceberg.
This isn't necessarily wrong but you will probably notice a distinct
difference between an article on wing design written for Fortune as opposed
to one written for Aviation Weekly :-)