Exactly. As far as I can recall,
his CONTRIBUTION begins and ends there.
Breaking Bad Season 5, Episode 15
...if and when he makes
a worthwhile CONTRIBUTION to science.
The Big Bang Theory Season 6, Episode 9
...you must consider only the
CONTRIBUTION of the man to the field...
The Big Bang Theory Season 3, Episode 7
So, what was Walter White's
CONTRIBUTION?
Breaking Bad Season 5, Episode 15
...you'll put them in order of the size
of their CONTRIBUTION to their fields.
The Big Bang Theory Season 3, Episode 7