Drug pricing is unrelated to physician fee schedule.
You charge whatever the market can bear if you are doing cash only.
These are separate issues. Most people matching into ortho or derm don't want to be researchers, but they still gun for as many publications and best board score as possible. You also always develop a narrative so that you can get into the best academic institution possible. Academic institutions KNOW this, and are FINE with it. They need cheap labor at earlier career stages, and you fill the need. You need their brand. Do whatever it takes to get into the best program, and THEN your options get much broader afterward. If you want to maximize your freedom later I would buckle down and play the game early. If you really are craving running a business, I would just start a business now (i.e. do some real estate investing, etc). If you are really interested in practice management and policy, issues relating to reimbursement and patient flow etc, there are legit implementation science research you can be engaged in and would develop credentials for a "top" academic program.
Once you are in a top program, your career options expand in several ways. One is obviously academic/research career, which pays little but has other rewards. Second is a managerial ("administrative") career, which requires stepwise movement institutionally, with some shortcuts (i.e. specific management training, etc). Think of this as climbing the corporate ladder. This is also relevant if you want a senior policy job in the public sector. Third is "solo cash" or partnership track at a lucrative small group practice. Think of this as running any kind of boutiquey small business--branding is very important (though not in and of itself sufficient), and wealthier clients look for relevant brands. In terms of mid career transitions option 1 <---> option 2 tend to have overlap, both option 1/2 --> 3 but 3 rarely go back to 2 or 1, because 3 makes on average the most money and has the best lifestyle, but 1 and 2 are considered more prestigious. These jobs are not as accessible if you don't start out at a "top" program.
3 is very hard to do in general IM (and very few other specialties), relating to 1) psych has lower overhead, 2) logistically no advantage of picking a hospital vs. solo practice of physicians who trained at a reputable institution (i.e. the economy of scale is not as obvious)--don't need a scrub nurse, fluoroscopy suite etc. Other high paying specialties are totally different models mainly having to do with high reimbursement of procedures. Interventional rads has sky high overhead, but right now their facility fee and reimbursement rates are sky high also. These are issues to think about because these specialties are much more tethered to global reimbursement negotiations and will be more affected by systemic changes.
In psychiatry there are also decent public staff jobs (i.e. a suburban VA that's mostly reasonably good patients that has a very high salary), but they are rare and would typically they also attract top graduates through word of mouth. Good subspecialty staff jobs (say medical director at a private rehab facility or wealthy adolescent day program, that type of job) also tend to attract top graduates. A very common arrangement in psych is part time public/facility based job (even shift based), with benefits, and part time private practice. These kinds of flexible things are hard to do in IM/procedural specialties. As a MS I would not worry about these practice management nuances, since once you start residency what's materially more interesting (i.e. inpt vs. outpt vs ER vs. IOP vs. various subspecialties etc) to you would become very obvious.