Not true. There are a nigh infinite number of things in the world one could buy in to. There is not infinite time to assess each one. We have to do some amount of guessing, even it we risk rejecting some things that might be legit. This gives rise to "if it walks like a duck and talks like a duck..." It's not ideal, but it has to be done.Before one places oneself under anything, or refuses to do so, it would behoove that one understand the exact formulations and requirements.
Your wisdom is a direct result of how well you can do it and get it right.
Oh. So it's stupid to read your employment contract?