Amazon has delivery lockers located somewhere. I haven't used this feature but it does provide security for the delivery. Just stop by the locker on the way home from work.
You also have the option of picking a single day of the week when ALL of your packages will be delivered. I suppose many would choose the weekend. I want my gratification more instant than waiting until Saturday but it's a great feature for those who work.
Amazon doesn't necessarily wipe out small business. A high percentage of the stuff you buy on Amazon isn't sold or shipped by Amazon. There are many small retailers using Amazon as a storefront.
They aren't a monopoly, people can still buy from WalMart but the strip-mall businesses are going to be in trouble. They can't buy their product as cheap as Amazon, they don't have economy of scale and they can't possibly carry the same range of goods even within a specific focus.
Amazon succeeds because they provide a service people want. If people don't want to buy from Amazon, there are many other sources. Amazon is not a price leader. They provide convenience and charge for it.
As to pay? How much is a packer worth? The robots bring the product to the packer, all they do is stuff things in a box and tape it up. The machines even place the shipping labels. How much is it worth to have somebody take something out of a bin and put it in a box? Well, it will pay about $15/hr. If people want to make money, they spend more time in school and get a better job. And nobody is forcing anybody to work for Amazon. They are free to work anywhere they want. Apparently, 575,000 people have decided to work for Amazon.
https://www.nytimes.com/2018/10/02/business/amazon-minimum-wage.htmlAnybody paying attention to working conditions in manufacturing businesses? It's not like you can just take a break any time you want as the cars come down the assembly line. Aerospace is similar. If your job is driving rivets, you aren't being paid to talk.
Sometimes raising the minimum wage is counterproductive:
https://www.forbes.com/sites/michaelsaltsman/2017/11/20/new-york-citys-empty-storefronts-and-the-15-minimum-wage/#255f5c73101fSo what does NYC want to do? Add a tax on unoccupied storefronts. That ought to be interesting!