When Jackie Stewart started his safety campaign, it proved he had bigger balls than all the other drivers put together.
They all knew that they were being put in a position of taking too many unacceptable risks purely so organisers and circuit owners could maximise their profits. It was purely a matter of money being more important than drivers lives.
He had the guts to open his mouth, while all the others were too scared.
Nike Lauda then took over the campaign and did a fantastic job of it when Stewart retired.
As Lauda said at the time "Its motor racing and we all know its dangerous, all we are asking for that when something goes wrong, we have a chance. At the moment, we often have no chance at all".
The TT though (like the road races in Ireland) is a different thing altogether. Its not about skimping on sensible safety measures to make more money.
The length and nature of the course make serious safety measures impossible, no matter how much money you throw at it.
The riders know this, and make their own decision to take the risk for the thrill and the glory.
I have great respect for that.
I hope McGuiness calls it a day now. He has got away with it for a very long time, and probably not sensible to tempt fate any longer.
I worry about Michael Dunlop. He seems to have a chip on his shoulder and is determined to push the limits further than anyone else.
That a dangerous attitude on the roads.
I suspect he wants his uncle Joeys record of 26 wins (he is now on 20) because there was friction between the two sides of the family, and he wants the record for his side of the family.

Having said that, he of all people is more aware of the risks than anyone else, and decides for himself how to approach it, so its up to him.