A deep, crisp, resonant speaking voice can impress immediately the people around you. There is something about a mellow, smooth deep baritone that makes people, and especially women, like and trust a guy when the voice is powerful.
Conversely, a weak or tight, high voice is quite the opposite and people tend to disregard a man that doesn't sound "right" This is not your fault, it is just the way society is and the values people naturally place on such things . Typically, people may make quality judgments about your character, based on the baritone of ones voice.
The reason why you get immediate trust is because a deep voice is seen as an authority attribute. People trust authority, they have been trained to do so naturally from a young age and one of the most powerful demonstrations of authority is to have a deep crisp resonant speaking voice.
It demonstrates confidence and confidence is always "trusted." This dynamic can severely affect a mans life and future. A deep crisp speaking voice that is permanently reliable, can over time develop positive outcomes in their life. This subtle quality can be very instrumental in every aspect of ones life, including getting a better career, more promotion, more possibility of dating beautiful women and even such things where trust is measured like applying for a home loan.
The idea of consciously manipulating the vocal chords to assist in getting a baritone voice can be a smart thing to do for many men who suffer from a weak speaking voice. The baritone effect can be had by training the vocal chords over several days of exercises. This change, once made can be a permanent solution to having a weak or squeaky voice.