There's no use in getting backlinks from different languages unless your site talks about languages, travelling, political issues in that particular country etc. The link has to look natural and Google has to make the judgement that it's valuable for your visitor. It also depends on your TLD (.com, .co.uk, .ru). If your visitors are mostly from Pakistan, there is usually no value in backlinks from Mexico for example. Moreover, you risk getting spammy links and thus hurting your rankings.
