I think laziness has changed.
It used to be about avoiding physical labor. The lazy person could nap or have a cup of tea while others got hot and sweaty and exhausted. Part of the reason society frowns on the lazy is that this behavior means more work for the rest of us.
When it came time to carry the canoe over the portage, I was always hard to find. The effort and the pain gave me two good reasons to be lazy.
But the new laziness has nothing to do with physical labor and everything to do with fear. If you're not going to make those sales calls or invent that innovation or push that insight, you're not avoiding it because you need physical rest. You're hiding out because you're afraid of expending emotional labor.
This is great news, because it's much easier to become brave about extending yourself than it is to become strong enough to haul an eighty pound canoe.