Let me clarify, big business and global adoption is what will make Bitcoin more valuable than anything we have seen in the past.
Very true.
If it is associated with illegal activities with things like DSV
Don't agree so much with that. People use FIAT money to buy drugs and carry on illegal activities right? Illegal activities will continue regardless of what coin or currency is being used.
, then I can assure you no business will want to build something on top of bitcoin, and no country will use it as their currency.
Maybe it will not be BTC, but most definitely it will be backed up by it inmho.