You might get different answers depending on who you ask. I think generally the BP will go up as arteries harden and stiffen with age. But older folks might not tolerate the meds as well. They get more light headedness or dizziness especially when standing. If they're frail or have other medical issues sometimes the side effects of medications have to be balanced against the quality of their remaining life. So, some doctors might give a little more leeway with the targeted BP range. But I think in that situation it is for quality of life and not to get more blood flow to the organs.
The target range is now under 120/80 which is kind of bonkers. If you have 115/85 you have "hypertension" and might qualify for meds, lol.
Meanwhile the average bodybuilder is at like 140/95 year round.