Stuff isn't more expensive, virtually everything is much cheaper than it used to be, inflation kind of hides that by attaching larger numbers to the prices of things.
But think about this way. You have a small number of ancestors who did anything but farm or forage for a living (this is true even for kings). You own lots of clothes, but most of your ancestors owned a very small number of rags. You think that food is expensive, but most of those guys spent 60 to 70 percent of their income on the stuff and all they got to eat most days was bread.
Sometimes you will see that wages are falling relative to inflation. But if you look at the basket of goods which is used to calculate that inflation you will see that it includes - as daily consumables - items that once would have been unthinkably lavish. Disposable contact lenses are in there for instance. This is because inflation has to be calculated according to the things that we actually buy, so inflation goes up all the time, but the value of the old baskets goes down. If you look at the basket used to calculate inflation in 1973, with its tub of margarine and vacuum cleaner bags, that thing is worthless now.
And that's just the value of little bits and pieces. A 1973 Ford Cortina cost the best part of an annual wage for a skilled labourer. It was made with steel of a certain value and a number of man hours of a certain value, etc. And that gave it a particular cost. A modern car has been made with about the same amount of steel, at a higher price, but of a much lesser value in relative terms. It used far less hours of labour but those are higher in both price and value now, yet the overall product, in spite of being vastly superior as a machine (and of higher value in that regard) is much cheaper as a proportion of the income of the purchaser.
Then you can look at very big things like factories and office blocks. Old ones get torn down, new ones get built. The new ones are more valuable, and so now is the land on which they stand. With intellectual property, the patent for the paper clip has lost a lot of its value, but the ones for new medicines are worth rather a lot.
Ultimately wealth expands because lots of people takes lots of things and make them a bit more valuable. Prices, inflation and wages are rather flaky ways of measuring that in the short term, the process is only really visible from the perspective of a longer time frame. That Credit Suisse report for instance is hugely skewed by currency fluctuations, which accounts for more than all of the Japanese losses it reports.