Point is - not many are actually aware of the safety features. Even if some are aware, they tend to ignore it and choose other luxuries over safety.
Manufacturers are here to sell cars. If a customer demands safety features, then there is no reason why the manufacturer wont provide it. But if no importance is being given to ABS and Airbags, why would a company unnecessarily plonk it in their base models and make it more expensive than it's competitors and thereby lose business?
Companies want to make money and they are not here for social service. This is pure business for them and that is a fact. Yes, they do give you the option of buying a car with all safety features but it is upto you to decide your fate. There are many people who feel that ABS is not necessary, why would a company lose business to them? If we ourselves dont care about our safety, why should we expect the manufacturers to do so?
@ Surfer: Base models of many cars are bought by cab operators or fleet owners or even people on a tight budget. Such people dont care about the safety features in the car. Every manufacturer wants to price their base models as competitively as possible. Hence, they have to cut costs. If you are so conscious about safety and you find the top end to be too expensive, you can always buy another car which is in your budget and also offers all the safety features. There are many options today... For example, if you are very concerned about safety and cannot afford the top end i20 with Airbags and ABS, why not buy the top end Swift then? It comes with Airbags & will cost the same as the i20's middle variant without Airbags.