Because you are at a disadvantage against those that do? I guess it depends on how definition of "required" and I feel like the context dictates the definition of "required" to be "required to be competitive."

Job listings often list unrealistic or impossible qualifications (such as 10 years experience in a programming language that's only existed for 6 years, most famously), overblown or unrealistically wide scope (must be expert in Linux, Windows, Cobol, C++, Atari, and to do the Kessel Run in under 12 parsecs), etc...

So to actually get a job you may be perfectly qualified for, it's requires lying. The trick is knowing what's bullshit on the job listing and what's important, and if you are qualified for a particular position, you should know what parts are bullshit. Lying in that instance seems fine to me.