I am not a lawyer, but I have seen cases of (non-aviation) CVs which have been padded. What seems like a bit of gamesmanship to some people becomes 'obtaining a pecuniary advantage by deception' once the law gets involved. That is a form of theft and is no help to the next CV. It is treated seriously by the Courts. If there are safety implications, such as there must be in aviation, then the consequences might be very serious indeed.