What is the actual purpose of marriage and love?
You can't understand the supreme lord (or God in simple language) if you don't experience love. After knowing who is the supreme lord, if you want to mingle with Him (the supreme lord) you have to follow the rituals in a family with your wife. That is, you can't do the rituals without your wife. Therefore, marriage is essential which also imparts love and the love continues forever. This is the primary and ultimate reason for the existence of love and marriage. This explanation is purely based on Vedas and not my personal opinion.
In the entire discussion, nothing is said about wealth, property or education. This means people with any wealth or any property or any education can get married and love to achieve the objective as said in previous para.