“For other gedolim, it may be different, and it may be different at different times in their lives.”
That’s a very important point, WTP. Thank you for mentioning it. If someone hears that Gadol A was such a masmid that he never helped in the house, that shouldn’t lead them to think that Gadol B was not a masmid because he helped his wife. And of course vice versa as well -they shouldn’t think less of Gadol B because he didn’t help.
Each person has his own tafkid and personality and responsibilities, and the same is true of Gedolim as well (although on a different plane than the rest of us).