The same picture will look the same size if the default size which is a scaled version has reached its maximum. What should look wider is the text with less wrap around. It is entirely your choice which one you go for, but for people like myself on smaller screens (and with limited data caps and slower connections) larger pictures can be an issue for us. In fact I have to minimise what is open. My laptop alone in the last 30 days (and this is just web access) has used 11Gb of data. Each of the tablets has used 2Gb of data, we have 2 of them. That is just day time use and with compression enabled to reduce data usage. I am very careful as to what I use and do. I don't watch YouTube or catch up TV, I don't watch any videos for that matter, listen to music or radio over the internet or anything that streams. Between the laptop, the 2 tablets and the 2 smartphone, internet access alone uses over 1/3rd of my data allowance. By the time we factor in system updates, email clients, app updates etc, I have used 2/3rds of my data allowance for peak hours and peak hours run from 7am to 1am local time. We can't actually watch catchup TV very often or watch videos. It is cheaper to purchase films on DVD or buy them outright and me download them when I wake during the night, than it is to actually go over our data allowance. The joys of satellite broadband and internet access for all... an Australian government scheme where the satellite dish, installation and kit has to be provided free of charge to those who can not get broadband through their telephone line because they live too far from an exchange.
Yes, there is less wrap around on the text. I think I prefer it on default - quicker to read.