It's not about change being hard, it's about doing a reality check on moral highground. You chose to talk about working for a company that cooperates with MBS, and I wanted to point out that it is only a tiny fraction of activities that support MBS.
Choosing an MBS-free activity is all fine and good for personal moral growth. However, in general, I've observed a lot of gloating about moral highground once someone does a few of these choices. Without realizing that the people they're trying to describe as morally corrupt might actually be less corrupt just because they shop less.
