People love drinking beer. It's good for socializing, it's good for relaxing, and it's good for taking the stress out of a difficult day. People will always want to buy it, and so owning a quality beer company is an easy way to make money so long as you have access to customers. Maria Asuncion Aramburuzabala has lots of beer to sell, and lots of customers to sell it to. That's why she's the richest woman in Mexico with a bank balance of more than six billion dollars.
The company originally belonged to her father, who passed away before his time and left the young Aramburuzabala with a decision to make. Did she want to take the money and leave the company to others to run, or did she want to make a go of it herself? She chose the second option, and she's shown a real aptitude for it as the firm has continued to go from strength to strength.