Complex sentence: This boarding school socialization is carried over well after leaving school and into students' dealings with the social world, potentially causing boarding school students to adhere to the values of the elite social class which they come from or which they aspire to be part of.
Split into simpler sentences: This boarding school socialization is carried over well after leaving school and into their dealings with the social world. Thus it causes boarding school students to adhere to the values of the elite social class which they come from or which they aspire to be part of.