Because Tagg is alsoa smart trainer and knows that the goal is a grade one win Kev, not a grade 2 at any price. A grade one win gets you autmatic liscnese to stand at stud and far outshadows the money in a grade 2 even if its a million. The Sec is the only grade one grass race for strictly three year olds and tagg knew this was the goal. But our brain damaged friend here(Bold Ruler) will say its ok for Tagg to do that, but not for pletcher to skip the million to try and get to his goal. Which basically makes Bold Ruler a spineless, know nothing hypocrite. But we already knew that so its no big deal.
Bottom line is that both Tagg and Pletcher did or are doing what is right in attempt to reach and pursue their main objectives and that of their owners.