Vets can easily make 100k+ in rural areas where the median wage is in the 20s or 30s. You could double the number of vet grads and vets would still be able to make a comfortable living.
Do you know how much student loan debt vets have?
https://www.studentloanplanner.com/veterinarian/
Also, I have several veterinarian friends, and about half of them are absolutely struggling financially. Do you have personal contact with some, just out of curiosity?
And if you're curious, the suicide rate for vets is very high. We could argue the reasons, but I don't think it's unreasonable to say that money contributes.
Taking out a $400k loan for education seems like a bad idea unless you know you will be making 150-200+. My sister graudated with something like $150k debt, and it is fully repaid now(8 years after graduation) The mistake the lady in the article made is she picked basically the most expensive option and graduated with debt that is greater than 90% of her peers. She could have prevented her situation by, perhaps, going to a cheaper or in-state school.
And yes, vet suicide rate is high, but so is the suicide rate in rural areas where they frequently operate. If you aren't a canine/feline/companion vet, the suicide rate of their clients(farmers) is almost certainly higher than the suicide rate of vets.
Tuition is very expensive. I don't know how your sister graduated with $150k in debt. She was for sure in-state. Was her undergrad paid for entirely by parents or scholarship?
According to this one, vets are higher than farmers:
https://mentalhealthdaily.com/2015/01/06/top-11-professions-...
But yeah, I don't know how that's divided among the different kinds of vets.
Eh... depends on the job. I don't think that most prospective veterinarians dream of working for the USDA ($$$) when they graduate.
[1] https://money.usnews.com/careers/best-jobs/veterinarian/sala...
So, how is it "easy" to make 100k+?
/shrug