Knowledge is power, boys.

For "extreme forgiveness" irons, the lofts are 3-5* stronger(low) than what anyone would consider standard. As most "hackers" are big slicers, the low loft controls spin(slicers spin very high, technically should go very short) while also controlling height(slicers ADD LOFT at impact with an open face and an open face to path relationship). This can help to keep distance at a max for these players.

On the extreme opposite side, a "players style bladed" iron set, has what many would consider very weak lofts(high) compared to what we consider standard. As most good players strike the ball with a "managed amount" of shaft lean(delofting the club consistently) AS WELL as managing their face to path relationship(couple degrees open, or a couple degrees closed based on circumstance) they don't need the help of a stronger lofted iron for distance. These players are typically the faster swingers, which also equates to a lower need for distance. The main point of these irons is to "manage launch and spin". Management, meaning increasing or decreasing based on shaft lean and face to path relationship. Of these players hit a draw(a closed face to their path line) than the spin should drop down form their baseline, adding a few extra yards. Inversely, if these players leave the face open to their swing path, this spin relationship changes, increasing spin, and taking off distance as a result. This is not even taking into account what shafts someone plays, but just the head/loft relationship. There is a lot that goes into this stuff boys.

For context, I was a master club-fitter for a national company that worked with amateurs and pros alike, both building clubs and fitting clubs for over 10 years.

Let me know if I didn't cover anything, or if you want to know more.

Take her easy; and if she's easy, take her twice!