It's not as if Harvard has a special methodology that can't be copied. The exclusivity itself is much of their value. It gets them better students, professors,

It's not as if Harvard has a special methodology that can't be copied. The exclusivity itself is much of their value. It gets them better students, professors, and donations. My university copied MIT's CS curriculum back in the day, as did several other universities. Effectively that meant there was more MIT style education, but people still preferred to be part of MIT.