There are 7.8 billion people why are you only targeting 1% ?
Increase In Audience
By Translating your content into a different language you open a whole different demogrpahic. With almost no extra leg work.
Acess A Range Of Brand Deals
Not only will you have brand deals in the UK, you will be able to take advantage of native brand deals in international countries.
You wont have the change the content you already make, so you can make double the amount of revenue from the same video. By just making it accesable to other countries.