I think we've forgotten just how right wing and mean spirited Thatcher's government were - possibly as some of the bigger figures aged, and weren't in front line politics, they appeared less grim that the current crop.
In the 80s the Tories were openly homophobic, were weak in their opposition to apartheid, and vilified the poor. They gradually dismantled all wage protections, and talked about the unemployed as a resource to keep wages down. Much of what Thatcher did would be unacceptable today, even for the more radical right wingers in the Tory party.