This is a more serious problem than you think. If someone in any position of power thinks that there are no limits, not even the constitution, on their power then that is very bad. It's even worse if they say it publicly and are not immediately out on their ass and publicly humiliated and shunned.

The fact is that there are individuals abusing their power and often times they are getting away with it, even when it becomes widely known.

P.S. To add to this, it's important to understand the relation of law to society. There is nothing inherently special about law other than that people generally follow it. The more that people, especially people given power through positions in government, start ignoring or misinterpreting the law the less the law actually matters. What is the truth of legality is irrelevant to the facts on the ground. Murder may be illegal but that won't stop you from being murdered. Similarly, "constitution free zones" may not be legal but that doesn't help you if the police think otherwise. For that particular point, for example, consider the many immigration stops the police make in states near the mexican border. Legally they can't force you to stop and submit to a document check but that doesn't stop them from doing so anyway, and from most people complying to a simple request from a police officer.

The less oversight there is, the less punishment there is, the more likely it is that abuses of power will become more common.