Is my 89 year old dad's urologist a quack/predator? (testosterone therapy)

[HoingToHelpMyDad]

Hi,
For several years now, my dad 89 year old dad has been battling depression.  It's finally gotten so bad we had to hospitalize him.  Only now, with a multi-doctor team do we find out that he's been giving himself testosterone injections for well over 10 years, under the care of his urologist.  His new doctors were shocked to find this out, incredulous that at his age he should have any need for testosterone therapy, especially when he'd never had any hormonal problems his entire life.  My dad says that the testosterone is to improve his troubled mood, but mom and I suspect it's just insecurity about his virility--and that it could be doing far more harm than good.  

Also, all the years he's been dealing with depression, he's talked about this urologist as if he's seeing the urologist as his primary care doctor.  I always wanted to ask, "why the hell are you constantly seeing a urologist?" but I didn't ask because I guess I thought it would be too uncomfortable a topic.  But to be honest, all this time I've suspected that this urologist is just happily taking the money he gets from keeping my dad as a recurring patient--while not caring about the possible negative effects that the testosterone injections could be causing.

I know that you can't make a diagnosis based on my remarks above, but I'd like to hear opinions on whether my suspicions are at all valid that this urologist is just making money off my dad without providing good, sound care.  Thanks.