All 3 Uses

nevertheless
in
The Fountainhead
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Nevertheless, he's a saint.†
Chpt 2.4 *

nevertheless = despite that (used to connect contrasting ideas)
But the Wynand papers had no policy, save that of reflecting the greatest prejudices of the greatest number, and this made for an erratic direction, but a recognizable direction, nevertheless: toward the inconsistent, the irresponsible, the trite and the maudlin.†
Chpt 2.9
People were gaping at Wynand—discreetly and with practiced camouflage, but gaping nevertheless—and their attention included the two guests at Wynand's table.†
Chpt 3.3

Definitions:

(1) (nevertheless)
despite that

Based on idea 1 we might not expect idea 2, but this is a way of saying that even though idea 1 was just stated, we still have idea 2. Synonyms include in spite of that, despite that, nevertheless, nonetheless, on the other hand, in contrast and but.
(2) (meaning too rare to warrant focus)