Personally, I feel there has been a bit of hype here. 11 people a week are killed in the UK in drink drive related accidents. In contrast we heard of a dozen or so deaths over a couple of years from billions of travellers in aircraft.
Sure, if you have a pre-disposition likely to increase the risks from DVT, the socks are an aid but I still think crossing the road is more dangerous.
Might I suggest a visit to your GP, as there may be factors in your medical history which could increase the risk of DVT.