Actually, as someone who's hired through public speaking agencies for 'elite' speakers, prominent people are paid a lot to make the same old speeches saying nothing much. Mostly it's for the wealthy audience to feel good they've seen/heard them in the flesh. @ArcaneWireless
"Even failed presidential candidates such as Jeb Bush, Hillary Clinton, and Ben Carson get paid tens of thousands of dollars—and in Clinton's case a couple hundred thousand dollars—per speech, according to published reports.
Former President Bill Clinton has made the most of any modern president on the speaking circuit. He gives dozens of speeches a year and each brings in between $250,000 and $500,000 per engagement, according to published reports. He also earned $750,000 for a single speech in Hong Kong in 2011.
In the decade or so after Clinton left office, from 2001 through 2012, he made at least $104 million. “I gotta pay our bills,” he told NBC News.
Former President George W. Bush earns between $100,000 and $175,000 per speech and is considered one of the most prolific speech-makers in modern politics.
Politico reported in 2015 that Bush does his speaking, "in private, in convention centers and hotel ballrooms, resorts and casinos, from Canada to Asia, from New York to Miami, from all over Texas to Las Vegas a bunch, playing his part in what has become a lucrative staple of the modern post-presidency."”
Yes Harry's no president, but public speakers you've never heard of work the circuit for 5-6 figures per engagement. Disgraced politicians and former royalty (if only he hadn't publicly cut himself off from the Establishment like that) have an even easier time of it.
Harry received £5m annually before he left. So if he wanted to quietly work the circuit, say 1 speech a month, that would have been an easy, low-profile income source for him that matched his former income.
Even Obama does it - 3 speeches in a row, 400k each, to dubious groups, barely months after leaving office, and who knows how many regularly now. Again too bad Harry's name has no royal brand attachment/value now though.