@Jessica W. I can't say that I know why others teach and help others, however I will give you my reasons. I will give you a bit of info about me so you understand how much other's help and advise has helped me in life.
I came int he States about 15 years ago with limited knowledge of the language (hence my spelling), from a formerly communist country in Easter Europe, meaning that we had no credit card system, credit scores, no Real Estate industry per say, as most of homes stayed in the family for generation. So I had to learn the language and figure out things for myself. I am a huge reader so very fast I found out that 90% of the millionaires in this country were made of Real Estate. I always loved arts, so architecture was a passion of mine, and immediately got drawn into the infomercials late at night of the "No money down programs. "
I started reading everything I got my hands on and start asking questions on everyone that listened to me and had some experience with Real Estate: contractors, RE attorneys, CPAs, Realtors, Investors, etc . Due to the help of others and the books I read, now I am a Real Estate Broker in Chicago and after years of learning and working in 2013 I was named by Chicago Association of Realtors in top 1% or Realtors in the City of Chicago based on the number of sales I do per year.
In the same time I am the biggest recruiter in my office and I am mentoring the most agents in my office. If I would have thought that I create competition for myself, then I will have not brought anyone on board, neither teach them the business that took me so long to learn and spent probably by now over $100,000 investment in seminars, books and real Estate courses.
As an investor, I own a handful of properties for cash flow, I do flips and I am ready to start building. In the same time, I will call my clients and friends investors and give them lots of great deals, as I can't buy all the deals on the market. There is a saying that "The deal of the Century is on the market every day. All you have to do is go find it".
The market is a large pool of houses and people. It will be impossible for me to buy all the houses, to sell all the houses or to flip all the houses in the market even if I wanted to.
My mentees are sending my way great deals that they can't buy or that they are looking to wholesale, and I learn or remind myself how to do things just by teaching them. There is no better way for me to grow into my business than teaching someone else. Some days they make my days just through their heartfelt thanks. I don't train them to get back. I get back because I train them.
The book that is the most published in the world is the Bible. So even if you are not a believer, if you read it to become wiser you'll find the following passage:
"Ask and it will be given to you; seek and you will find; knock and the door will be opened to you."
The second most published book is "Think and Grow Rich" by Napoleon Hill. One of the chapters is "Power of the Mastermind". Read this book, there is a reason is the most published book after the Bible.
Everything I've learned and I have in my life I owe to others.
I start all my training of Real Estate brokers or investors with teaching them about Mindset, because Mindset is 95% of what you need in life and your endeavors.
Unfortunately very few people understand that skill is only 5%. If you believe that you can earn money in this Industry or any industry, you will find a way and not question the motivation of others. Everyone's motivation is different.
Learn, study, attempt, take risks and when the opportunity arises - give back with no expectations and life will greatly reward you with money and great friendships!
Good luck to you, and do reach to me if I can help you with anything!