Nikola Tesla is a non longer living person so we can not ask him this question. To my mind, it just was the thing he beleived he had to do.
Nikola Tesla had inventions that have to do with wireless technology. He did not invent telophone cables.
Nikola Tesla
1931
Nikola Tesla had his ac motors ready and patented in 1890.
1899
Nikola Tesla
He got this work from 1885 to 1890.
Nikola Tesla invented the car. He did turn a pierce arrow 1930 car all electric.
Nikola Tesla claimed to have invented a death ray but it has neither been proven nor disproven.
he did it for communication advances by transporting power long distances
It was called the Oscillator
Tesla could imaging things in his mind and put them to work.