I have been involved in politics most of my life and if circumstances change
you must be prepared to meet them.Congrats Theresa.
In other words, 'align' your principles to suit public opinion and whatever will get you (re)elected. Or if you're already in power, orchestrate events for the same effect.
That seems to be what most successful politicians do.....
I don't see any sacrifice of principles but someone who knows what the majority of the people voted for and considers that this is the best way to achieve it.