Illegal boon

We always figure foreigners (white in particular, no racist slur intended) as some lame people who are meant to be duped when they visit India, and in particular by the transporters like taxi operators and autorickshaw operators. I recently realized that it is not the lameness rather the language barrier which makes them to pay more, and this realization was from first hand experience. No I didn't visit some African country recently, rather has just completed my first two weeks in Chennai and here every local vendor as well as autorickshaw operator takes the advantage of this language barrier and we end up paying much more than what we thought should be the right fare. Being forced to overpay in past 2 weeks, when I landed in Delhi yesterday and had to go around 35 km to reach home that too after 11 pm, i thought i would end up being a lot lighter. But on the contrary I ended up reaching home spending only 20 bucks. And I covered this distance in a royal way, in an air-conditioned Cab with me sitting on the backseat (alone for most part of the journey).
While sitting in the Cab, I realized the importance of growing prowess of Indian service industry and the things which are connected to our lives because of it. Large number of people who have their offices in Gurgoan or in Noida, depend upon this mode of transport. I am not talking about the legitimate travellers rather the one who are being illegally ferried by the drivers of these Cabs. This has become such a bigger transport medium, that if the BPOs are forced to shift to some other location, there would be severe transport crisis. I don't think our planners would ever look into these boons of service industry, which though illegal but are doing a lot of good for the community. Infact I can safely say that this practise has bought the cheapest cab transport probably in whole world. I tried to think of other such illegal practise which eventually does a good for community as a whole but couldn't think of any which comes even closer to this. If you come across any do share it.