For ages have I tried to understand why guys (and I don’t mean gents but normal “guys”, “blokes”, “lads” or what-have-you) who generally dress quite well seem completely 
oblivious about what they wear below their ankles. And I’m not talking about shoes this time but socks. Technically they might stretch above the ankle, I guess, but you get the idea. Socks is a statement, something you can use to define yourself and your belief in good quality clothing. They should be a business card, but more subtle. You don’t shove your socks in someone’s face after a board meeting. Or at least I hope you don’t. Regardless, nice socks are garments to be remembered by.
Nothing make me happier than walking along a busy street somewhere in the world and all of a sudden see a great, bespoke suit and a flash of a red sock. In particular if it’s a navy blue suit. It takes me ages to refocus after that. Having said that I can’t stress enough how awful I find it with dark socks to go with dark suits. They should be banned together with the flesh coloured sock. Never ever is there a situation in life where a flesh coloured sock is ok. Never.
As mentioned above socks can be used to put that extra touch to an ensemble that otherwise would have been great but now rises to another level. Coloured socks should be used to enhance what you’re wearing. A dark suit is just that if dark socks are worn with it, but if you wear a colourful pair it becomes a good-looking suit. The contrast makes it interesting, gives the ensemble life.
So, please guys, make an effort from now on? No one would be happier than me.
Mr Freelance's gentlemanly ponderings 
There is a Stephen Fry clip on YouTube where you see he is sitting on Graham Norton’s sofa in a boring, dark suit, then he takes care to casually show his sock about 5 seconds in, and the outfit comes to life!