"Indian Americans are the wealthiest and most highly educated immigrants in the country. But there's nothing special about Indians per se, according to Economics Professor Nirvikar Singh, coauthor of The Other One Percent: Indians in America.
Since 1965, the selection process in India has favored the most privileged members of society—those from the educated, upper classes—and U.S. immigration policies further advantaged high-achieving students and skilled workers."
Check this one out too:
https://news.ucsc.edu/2017/06/singh-book.html
"Indian Americans are the wealthiest and most highly educated immigrants in the country. But there's nothing special about Indians per se, according to Economics Professor Nirvikar Singh, coauthor of The Other One Percent: Indians in America.
Since 1965, the selection process in India has favored the most privileged members of society—those from the educated, upper classes—and U.S. immigration policies further advantaged high-achieving students and skilled workers."
Checkmate!
Only 13% of Indian Americans come to the U.S with h1-b1 visas. That is an extremely low percentage, so no. They are not already successful.