There are a lot of nuances in English that only native speakers can really understand, or at least those who are really proficient. I still struggle with is / are (collective nouns) and "indefinite articles" and such. So many rules. Lying is OK, and sometimes necessary for the greater good. Actors and comedians lie for entertainment purposes.
I just don't like the idea of fraud and ripping people off. There is a lot of trust here, and I know people who can ruin people's lives with a bad reputation. It's just not worth it in the long run.