Life changing circumstance

I came across a story whether non-fiction or fiction, the message from this story is something we need to consider...
A certain man went to look for a job as a cleaner in a company. After the interview, he was qualified for the job. The management asked him to provide an email address, with which they will use in sending him the appointment letter. In replying, he quickly told them he did not have an email address. The management told him they would have hired him if he had gotten an email account. The man was demoralized and felt miserable. On his way home, he remembered that he had $20 in his pocket. With all the frustration, on his way he decided to buy tomatoes worth $20 and sold them as home delivery to a neighbor who needed tomatoes.... He made profit of $10 and added it to his initial capital and it summed up to $30. He used the $30 to buy more tomatoes, sold to people as hone deliveries and made additional $15. His capital for the business rose to $45, so for each sale, he made 50% of his capital as profit. To aid his logistics he bought a cart and as the business grew, he later bought a delivery van....

After many years, insurance personnel approached him for a life insurance policy. The insurer asked him if he had an email address for future correspondence, the tomato seller now a rich man turned and replied, 'I do not have an email account'. Hearing that reply, the insurer was disappointed that a man of such greatness did not have an email account. He said 'oh if you've got an email address your business would have grown beyond this size'. The rich man said to him, "I equally know where I would have been, I would have still been a cleaner by now. I don't need an email account to get money.."
I strongly believe that frustration led him into discovering a business that eventually made him rich for the rest of his life. Like the saying goes, "necessity is the mother of invention... "....
No matter what you do.... You must always know that every circumstance we face is a stumbling block to greatness.... So do not back down when adversities and circumstances comes your way.......