There is ample evidence that the UP leadership simply doesn't care about the negative consequences.
The business model they are pursuing requires them to prioritize short/near term gains over practically anything else except for legal liabilities.
In other words, if they can't be sued for it (or if they can be sued for it and have a decent chance of winning), they will take any course of action that will maximize their short/near term gains.
The notion that this model could lead to ruined lives, critical safety issues, and to the decline and ultimate insolvency of the railroad, appears (to them) to be a matter of supreme indifference.
I agree with @YMUXNOL-rjc 100%. Great post.