I don't think Steve Jobs made the iPhone or even wanted anything to do with it initially.

"A senior iPhone engineer, Andy Grignon, is quoted in Merchant’s book saying, “The exec team was trying to convince Steve that building a phone was a great idea for Apple. He didn’t really see the path to success.”

Then Apple vice president Michael Bell reportedly sent Jobs a late-night email on Nov. 7, 2004, explaining why they really should make the phone. Jobs called Bell immediately, and they argued for hours until Jobs finally relented, Merchant writes."

https://www.cnbc.com/2017/09/12/why-steve-jobs-almost-prevented-the-apple-iphone-from-being-invented.html