I don't want to debate or argue. I'll reply only to attempt to be helpful, but feel free to call me an idiot, I won't engage.
There are two issues at play here. One is that everyone has more money, and two is how everyone got more money.
Skipping one altogether, two explains most cost increases. When wages rise, it cost more to make everything. Because labor costs are higher. The farmer wants more money, the butcher wants more money, the drivers want more money, the stockers want more money, and the sellers well, they always want more money. When you double their wages, as what's been happening in the lower wage section recently, those costs affect the product. This is what many people miss about the minimum wage debate. If a guy stocking cans at the grocery makes 10 and hour, and the guy digging coal out of a mine makes 20 an hour, what happens when minimum wage goes up to 20? Of course the coal diggers want more money too, or else they'll take the easier job. This alone accounts for 'essentials.'
Going back to one again. The issue isn't that an individual person has more money. It's that -everyone- does. So it's not a rich person buying up extra, it's people that normally wouldn't buy a product enter the market.
Regardless what others have alluded to, a rise in demand always means a rise in prices. It's basic supply demand curves that have been studied forever.
An anecdote, rather unrelated: Supply demand curves aren't always what they seem.
A pizza place could turn a profit selling pizzas for a few bucks. Demand initially surges, then recedes as people get sick of it. Turns out, it's worth more to price it so that people only sometimes buy it.