[flobosg]

A process taking 0 seconds means that, in one year, it can be run 31540000 sec/0 sec = ∞ times, multiplying the profit by ∞.

[willsmith72]

Since when is the constraint "how many times can I run this thing"?

[zahlman]

In principle, the reason that "every second saved here is worth $x" is because running the thing generates money, and saving time on it allows for running it more often.

[lblume]

At least in theoretical computer science, often, but that's another matter entirely.