Could someone explain why this to me?

These rules heralded the equality of all people before God.

"There was no discrimination as to rank or wealth. The redemption of the High Priest was precisely the same as that of the day-laborer." The price of these redemptions, however, was not nearly as small as they may seem to us. "These figures are very large. The average wage of a worker in Biblical times was about one shekel per month!"

The relatively lower evaluation placed upon women should not be construed as any injustice. Back of these assigned values was a calculation of the amount of physical work one could accomplish, and these distinctions were not any different from those seen on every golf course in the world today, where the ladies' tee shortens every green on the course for women.

As far as the spiritual worth of men and women, we have this.

Galatians 3:28 There is neither Jew nor Gentile, neither slave nor free, nor is there male and female, for you are all one in Christ Jesus.

Why not be totally honest and below such questions of yours parenthetically admit "(No matter what answers are given, there's no way I'm going to believe in God; and my question has nothing to do with learning anything about God.)"

Yes it says so in the bible. Men are worth more shekels than women. Twenty shekels for a male and only 10 shekels for a female. 

He must be a woman hater. 

context would help

Jesus came to revise the teaching of the Old Testament.