I think that is a very good question, and I eagerly await others input.

For myself, I usually say that "gravity pulls on me the same all the time, and overcoming gravity is the most work I do all day".
I also use the analogy that "I get paid by the hour, and I will do what whomever is paying me wants me to do for that hour, and I will do it to the best of my ability, if what the customer wants is for me to go around and flush all the toilettes in the building, I will flush all the toilettes." (but I may just be the very most well paid toilette flusher within a number of miles).

So I guess it would be fair to say that for me, it is all "a wash" as to which job is better.