To what extent is sense perception an accurate way of knowing?

Our sense of perception is something which humans rely on to learn and react. However, there are cases when we are deceived only because we aren't concentrating on it. For example, the gorilla in the basketball experiment was something which our visual senses didn't see because we were merely concentrating on the number of times the basketball was being passed. What makes it interesting is how we easily our senses of perception can be tricked when we are told or shown something to concentrate on. In the case of the magic card trick video, we weren’t told anything about what to watch out for however the title of the video ,the colour changing card trick, lead us to concentrating solely on the cards which meant we ‘shut out’ what was going on in the background. Such subtle changes can make a significant difference as shown in the past such as Hitler’s influence to kill the Jews. Although our sense of perception is has flaws, we have no other options but to trust our senses in making the correct decision.