Damn right they are, if they're doing it without pay. Any union would put a stop to that. A shame America's "temporarily embarrassed millionaires" are unwilling to act in their own interest.
"Asshole" isn't the right word, assuming you mean they are working overtime regularly without pay. I'd probably use other words like "gullible" and "useful idiot[1]." And, yes, I would put them in the same tent as the other useful idiots who'd happily (as opppsed to out of desperation) take a job advertised as per the link in the article.