It's a holiday

to represent our respect for work and integrity...

http://www.thenation.com/article/we-are-judged-by-how-we-treat-the-helpless-and-the-poor/
 
AND YET

http://www.theatlantic.com/magazine/archive/2011/07/the-madness-of-cesar-chavez/308557/

...it seems that he of "messianic" qualities could also have become a more revered man who nevertheless found himself promoting only shrill and disordered women to higher places on the payroll...