Do you genuinely believe that you being allowed to spy on to your neighbours unencrypted baby monitor is a good thing that's helpful for society at large?
For example, in Finland this is legislated as follows:
Section 37 – Confidentiality of radiocommunications
(1) Radiocommunication is confidential and may be received only by those for whom it is intended. (46/2005)
(2) Whoever receives or otherwise has information on a confidential radio transmission not intended for him/her must not wrongfully disclose it or make use of the knowledge of the contents or existence of the transmission.
(3) The following are not considered to be confidential radiocommunications:
...1) initial transmissions of television and radio programmes;
...2) emergency calls;
...3) radiocommunications conducted using a public calling channel;
...4) the amateur service;
...5) shortwave radiocommunications in the 27 MHz frequency band; or any other radiocommunication intended for general reception. (46/2005)
The penalty for violating this law is a court-determined fine.
Do you think that this law is overall a net-positive or a net-negative for society? What good things come from you being able to listen to arbitrary transmissions intended for someone else?