[...]
One effect of the ruling is that it’ll now be easier to sue an employer over an expensive 401(k) plan, turning up the legal pressure a notch.
Those expenses matter. A 2012 study by Demos, a New York City-based think tank, found that over a lifetime, 401(k) fees cost a two-earner family with a median income nearly $155,000 — and consume nearly one-third of their investment returns.
[...]
