Comment by ben_w

The UK — actually, no, just England in this case — less cohesive than Switzerland? Switzerland gives a lot power to each canton. It is also famously mountainous, which is hard on infrastructure projects. They're also a through-route from Germany (and Austria and France) to Italy, so looking at just their own economy for industrialisation and load is insufficient, as this wouldn't explain the existence of e.g. https://en.wikipedia.org/wiki/Gotthard_Base_Tunnel