There are all kinds in road cycling as in any other area of life.
I find friendly roadies and snobs, although I do admit there is a higher incidence of snobbery than in some other areas.
Last week, I was riding the trail from Breckenridge to Frisco, CO, when I heard a lot of conversation behind me. Not a "on your left," or a "Hi!"
3 roadies passed me, immediately riding triple on the trail, continuously ignoring others, and acting as if they owned the world. Two ladies and a gent, very well equipped, expensive bikes and ALL the gear. They were strong riders. As there was a ferocious headwind, I stuck with them for awhile, the three of them forming a good wind break.
This is a MUP trail with a lot of newbies, and 3 abreast is simply not appropriate, as it scares the newbies, despite the expertise of the roadies.
They finally turned off, and I continued, where I had many other roadies wave and nod.
The next day, while I was climbing Vail Pass, I formed a "partnership" with a lady roadie who was extremely nice, and we rode together up the pass.
So, there are all kinds out there.
Normally, I ride alone out of preference!