Reading is the number one path to obtaining information. If a person does not comprehend well, he/she will encounter difficulties in understanding this information, which in turn may be detrimental to the person. For instance, if a person does not have strong language skills which are essential in comprehension of language, he/she may misinterpret a retail installment contract or an apartment lease or magazine subscription agreement. In that case, the person may end up paying much more than he/she originally thought the agreement would cost.
I really have no idea what you're referring to when you ask about implementing "three of these skills," but I can address the importance of developing comprehension skills as you mention above. Without the ability to comprehend the written and spoken word, one will never be successful in any endeavor. Being able to make sense of what is said or written is a crucial component of any endeavor. A person who can think, reason, and analyze will have a clear advantage over those who cannot. Unfortunately, these skills are becoming a lost art in our world of multiple choice, matching, and fill-in-the-blank thinkers.