People purchasing counterfeit goods save money at a large cost to others, specifically children who live on the premises of large warehouse facilities and toil away at sewing machines for long, underpaid, and thankless hours.
If you've ever tried shopping for wide width shoes, you'll already know just what a thankless task it can be.
Teaching is often considered a thankless profession, with long hours, little pay, and significant emotional investment.
On the whole they performed a thankless duty with considerable ability.
The blot on it is certainly the character of Emilie, who is spiteful and thankless, not heroic. Polyeucte has sometimes been elevated to the same position.