The baronetcy given to Denis Thatcher was quite controversial at the time. Of course, it's believed that Lady Thatcher wanted something that could be passed to her son Mark, and had been after an earldom, but had to settle for a "mere baronetcy"*.
The next logical person to receive a baronetcy would have been Philip May, but he was knighted instead. Perhaps it's a missed opportunity as he would have no heirs anyway so it may have been less controversial.
* Use of this term is intended as an in-joke for regular readers