Are lineal titles overrated?

First topic message reminder :

In recent times, Floyd Mayweather has been accused of ducking Antonio Margarito. Mayweather chose to fight Carlos Baldomir. But people often forget the fact that Baldomir was the lineal champion at welterweight at the time Mayweather beat him.

When you look through the history of lineal champions, you see guys like Glen Johnson, Cory Spinks, Carlos Baldomir, Ricky Hatton, Jim Watt, Ricardo Mayorga, John Stracey, Adamek etc. all listed as lineal champions.

A lot is made of lineal champions but my question to fight fans is this: are lineal titles overrated?

Your only using that example because you can try and twist it to devalue you know who which is fairly predictable.

Its hardly devalued when it goes from P4P to P4P to Ranked to P4P is it