A low-sweat bike?

Did you try the road bike in your work suit as well?

Of course, the more convinced someone is that they aren't susceptible to outside influences, the less likely they are to recognise them.

Yes I did, but had to change shoes and it looks very strange to be wearing a suit on a road bike! And yes, it was far easier and I didn't get as hot. It was more a case that the Raleigh was more suitable for riding whilst wearing a suits and work shoes.

As for the outside influences, you are just making that bit up as you cannot know a person susceptibility to outside influences without knowing a bot more info.
As another example I have just the same situation when I walk to work. It is just under 3 miles and I like to walk very fast so easy to build up a sweat towards the end. This is fine in winter but in the summer I just have to walk a bit more slowly to avoid getting hot and sweating. And yes that is when wearing shoes that are just begging for it!

It is called control, will power whatever you want to call it. Some people find things easy when they put their mind to it and overcome influences. Some can give up smoking easily while others struggle, some people can limit food/diet easily while others struggle.