Right. Point being that expected value of drawing from a probability distribution isn't enough to explain people's preferences. We care a lot about the whole shape. So it's a little reductive to just tally up the expected time cost and call it figured.
Because your proposal is very different for two reasons. One risk vs reward. In the robo-car example the pay off is 20-80x of lost life to gained time. You get a lot of time for very little risk. But your example is 1.03x.
The second is the distribution of risk over the years. With the driving I take a little risk to gain a little time each day for 30 years. In your example I take all of the risk up front and then have small a pay out over the next 30 odd years.