You see, this is an example of the apparently unassailable moral high ground that cyclists (seem to believe they) occupy.
If there's no room to overtake, I don't overtake. As I said, I don't like killing people.
Cars overtake in smooth curves. The further out I have to move, the longer it takes me to get back in. Increased risk and fewer opportunities.
On wide-ish roads, there is often room from a car each way *and* a cyclist. Less often is there room for a car each way and multiple cyclists.
Tractors are usually driven by farmers who produce food, arguably a useful job. They have sometimes also been known to pull over to let cars past.
As I said, I accept the environmental, health and cost saving benefits of cycling, but in the current world, not everybody can use them for every journey. Let's please vote for more cycle paths, and while we're waiting, can cyclists please understand that drivers are not (all) the minions of the antichrist?
[Incidentally, I'm not picking on cyclists. The behaviour of pedestrians on the outskirts of my town is increasingly dubious, too (in the centre I feel they're more entitled to take right of way - there's no particular reason it should be clogged up with cars, after all.) When I was a kid, it was drummed in to me that I had a certain responsibility for my own safety when interacting with traffic. What the hell happened to that?]