Wow, not to be rude, but you have a lot to learn. Like I said, I know a lot of DS3 users and they will beg to differ with your philosophy here. Just because someone doesn't go full out like you do, doesn't mean they don't take what they do serious. Maybe they can't afford a wheel/rig, or maybe they simply don't have the room for an elaborate setup. Ever thought about that? Don't be so quick to judge here.
Your reasoning in your first paragraph doesn't make any sense to me either. I could care less if my competiters are laying on their couch with a DS3 or sitting in their big elaborate rig with gloves, a helmet, and seat belted in, just doesn't make a difference to me. I don't even think about it to be honest.
In the end, its your choice I guess but your reasoning is just really flawed and you fail to take other things into consideration as far as DS3 users go. I can give names of a bunch of DS3 users and If I didn't tell you any different, you wouldn't even know they were using a DS3 by racing with them.
EDIT: Just had a look at your rig and it is quite impressive. Good job on it.👍 But remember, the rig doesn't make the driver.