Becoming a vet to make money is probably not such a good idea, especially considering the debt you'll go into for the training. Not sure how people figure large animal vets make much, especially when they hate paying them.
I trained many years ago with a large animal vet who said he became such to make money to get a ranch. It never worked out, as he didn't make as much as hoped.
Unless you want to do cats and dogs, you might do as well as a mechanic, with alot less years of training and school expense. And more years spent earning instead of studying. And you'd be able to better fix equipment which you will need.
There are other degrees which take less time and earn more. Or if you want to spend 8 years in school, become a "real doctor" and get in on all the insurance and government money that's thrown at the system.
Or get a good government job, as the money is endless. Most people I know doing well have government jobs - plenty of pay, good benefits, regular hours, lots of time off, you can retire early and play with the cattle and land you bought.
This is assuming the country doesn't go bankrupt, but seems we can always print more money.