I equate this to the people working with habitat for humanity (no offense it's a great program) but these people are for the most part cos playing construction workers. But there's no foreman busting your ass because you are moving too slow or the general disregard for safety because you only have 3 days to frame out the house and it rained yesterday. It's no different than when the CEO works the register at some coffee place or fast food joint -look at me I work hard just like the little people. It's a show, in the end they go back to their rarefied positions and their outrageous salary not understanding that somebody has to do that back breaking work every day and for a wage a lot people wouldn't get out of bed for. I'd also add that they likely did a shit job that would gt you fired if you weren't working for free.

Do it everyday and live off the low wages for a year and then come back and tell me how fulfilling it is.