It is bad. Companies could just have some fucking standards.

The issue is profit-motivated companies existing in the first place.

Rather, they should be self-led, and motivated towards the best labour environment as according to their workers. That means their workers feeling accepted, heard and listened to, being able to not only live but also thrive. And all that, while still making the organisation more efficient.

Not exactly setting the good example.

Be excellent, but that does not mean you need to spend your attention to them. Let that kind of advertising system quietly die.

You could check out Wire, Session, and Threema etc.

Signal and Simplex are also pretty good.