Matthew 21:12-14 And Jesus went into the temple of God, and cast out all of them that sold and bought in the temple, and overthrew the tables of the money changers, and the seats of them that sold doves,
And said unto them, It is written, My house shall be called the house of prayer; but ye have made it a den of thieves.
And the blind and the lame came to him in the temple; and he healed them.
Jesus cleared the temple of money changers because the temple was the house of God, a holy, pure place, and the money changers were being dishonest and cheating people.
It is important because it lessens, minimize, or reduce competition in the western part of the country, they can determine accurately the time zone of one town from another town – for example, one town might have 6 am whenever the sun rises and another town had 6 am 10 minutes later, they made it possible for towns to lay their own tracks and most importantly; they provide greater efficiency in production, safety, and scheduling.