There was an interesting documentary on the economy shown in the States recently, "Commanding Heights". It compared economic philosophies and it seemed to cast Ms. Thatcher in a good light, but I'm not sure if that's what is meant by the initiating question of "Was She Right?"

Trade Unions or Trades Unions are a good thing when they protect workers' rights and a bad thing when they institute featherbedding and luddite policies and result in less open competition.

Governments are a good thing when they provide health and environmental standards and good order, and a bad thing when they stifle free expression and the aspirations of private enterprise, and protect the entrenched power and wealth of the powerful and wealthy out of proportion to the protection of anyone else.

Society is a good thing when it promotes standards of taste, decency, and humanitarian behavior, and a bad thing when it promotes class interests, crass interests, and any single religion.

So, not knowing how Thatcher stacks up, I dunno if I can answer the question.