Sweden moved on from its old barbarism when they began having to invest in human capital (ie industrialisation). Any old loser in the factory wasn't good enough. A good worker could outperform a bad worker by magnitudes. This is industrialisation. That always kicks off human rights.... eventually. It leads to fair play and leads to a tolerant and prosperous society. This is standard in any country that industrialises, assuming it also is democratic. The same happens in totalitarian regimes as well. Just much much slower, and since we haven't had industrialisation more than a hundred years ago in totalitarian country, we don't know yet the trajectory of those. And the Internet is likely compressing the speed of the cultural shift in ways we only now can start seeing. But we can draw certain conclusions from Iran, Chile, Argentina, Kina, USSR and so on. In all these countries ideas of human rights spread as well. Maybe we shouldn't overstate the importance of industrialisation in such cultures. But I think it's a factor.
Sweden have about 70 years of industrialisation before we got a cultural shift away from arranged marriages. Sweden actually went from being one of Europe's most backward countries (ca 1880) to most advanced (in 1950). This can be compared with the tiger economies in Asia that did similar extraordinarily rapid shifts-
India is a bit of a special case since industrialisation was well on it's way before the British came, and then the development went backward. And then when the British left industrialisation was badly mismanaged by a lefitst government. So we can't compare the time-lines of Sweden and India as neatly as we can between, let's say Sweden and Iran, or Sweden and USA, or Sweden and Syria. But India let the market forces sort itself out about in the 80'ies after which we see exactly the same kind of trajectory toward all the values we take for granted in modern industrialised countries. I'd say India maybe is where Sweden was 1930 or maybe 1940 as far as human rights are. Among the urban middle-class arranged marriages are dying, if not dead already. Of all the Indians I've worked with... and it's in the hundreds, none had arranged marriages. Or at least what they said. They all reported that it was dead in their area, (Mumbai, Bangalore and Puna).
So basically... I think you're wrong. I see no reason to believe that India won't develop to share all the same basic values as any modern industrialised country.
Saudi Arabia is also a special case. Any totalitarian regime with oil act to ossify the agrarian culture. The Saudi king basically pays everybody a bribe to keep doing the same useless shit they did when they were tribal. I mean... they're still tribal. The Saudi king is only using his money to keep his people backward. There's no industrialisation to speak of. Their countries oil industry is built and run by foreigners. The mechanic by which industrialisation leads to social progress is the shift in the power base away from the capitalist to the worker. If that shift in the power base doesn't occur, there will be no or slow progress. Sooner or later the Saudis will realise how they're being fucked in the ass by the Sauds. Women just got the vote in Saudi Arabia. That's a hint at the direction it's going.
NPR's Planet Money just recently released a podcast where they talked about Bangladesh, a country right in the beginning of industrialisation. The program isn't about this shift in cultural norms. It's about economy and the economy of Bangladesh. But it does in a very practical sense demonstrate what happens to an agrarian culture and agrarian values when it's women start migrating to the cities and start making their own money. This is the best example I can show. And Sweden was once like this. USA was once like this. Britain was once like this. The history is full of these tales. And we had the cultural norms to accompany it.
http://www.npr.org/sections/money/2015/08/12/431961808/episode-497-the-sisters-who-made-our-t-shirt
edit: Evolution is a good analogy. If you look at all the animals in the world as they are now it's easy to assume they've always been that way. But on a wider time-scale we see that there are hardly any stable forms. There's a rapid and colossal change in every direction. Human cultures are the same. They all change extremely quickly and adapt very fast.