It has nothing to do with morals. It's about self-preservatio. If you need a job, then you'll do what you need to get one. It's not like you're being asked to collect flesh for it. It's a lie. A way of getting the attention of an employer so that you can prove yourself worthy of the job, and any other job.
If you have no intention of being a hard-worker, and are just a dosser, then fine, still to your guns and waste away with no work complaining how 'life isn't fair', or you'll do what needs to be done. Exaggerate on the truth, sell yourself, and then prove yourself when you get given the opportunity.