You do get top notch, safe vehicles as well, it is just that most Indians dont consider the marginal safety worth the price.
In practice, the waiting period for any variant with safety features other than the top speced would be "over 6 months, no gaurentees". ie: as a customer, I was forced to buy the top end variant -- with alloy wheels, chrome trim and all sorts of other crap which I did not care about because I wanted the safety features.
I think that maruti is using safety features as a way to upsell customers who care about safety. The difference isn't a "marginal cost". For some models, the difference is 30% the cost of the car.
Coincidently, my ancestors lived in tea plantation estates, worked under British longer than most of my country men until the estates were bought by the Tatas and Birlas.
So here are my two cents for good tea in India - You can get good tea in plantation estates at almost any outlet, but obviously great tea like anything else is of export quality and it's fairly easy to get if you know the right person in the tea factory at the estate. Fun fact, no tea sold in the market is 100% just tea, they are the mix of tea and lot of other stuff which shall remain unknown to enjoy a good cup of tea.
The discriminatory quality of International brands for their products in India has been the norm since globalisation started in the country, be it Colgate toothpaste or Ford Fiesta, most of it boils down to manufacturer building locally what the market is willing to pay.
The opposite is true as well, our export products from fruits to vehicles are of superior quality than what is available for local consumers. Again , it's w.r.t what the market is willing to pay.
I regret that the safety standards on vehicles in the country are appalling, at-least things started to change last year with Tata & Mahindra cars getting good ratings in GLOBAL NCAP[1] for the first time. I hope the COVID impact on the automobile sector, doesn't revert the progress.
I presume this is the case with all the developing economies.
[1]http://www.globalncap.org/results/