Bell's earnings were further augmented by his endeavors in various fields of invention, including the photophone, metal detector, and early hydrofoil technology. He was not a particularly astute businessman and often relied on associates like Gardiner Hubbard, his father-in-law, for management. However, the commercial success of his inventions and the widespread adoption of the telephone significantly increased his wealth. By the early 1900s, Bell was one of the wealthiest individuals in America, with a net worth bolstered by the growing demand for communication technology, demonstrating that his genius and innovations had lasting financial implications in addition to their historical significance.
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