Thatcher was a con artist, she had zero principals or convictions, other than what is good for her and the party, she sold out state assets for financial gain, not hers directly but for those of the Tory party and their supporters.
She destroyed Unions, British manufacturing industry.. this was done to make screwing over the country, to make more money, far easier.
Even her so called, greatest triumph, the Falklands, was all about securing her legacy, the only reason she won 3 GE's.
Her skill, was making people believe she was a woman of principal etc etc....
If there was any justice in the UK, the only conviction she would have had is a criminal one.