I think it depends to a great degree on whether the connections are located in a dry climate or wet climate (also indoor vs outdoor), which has a moderate effect on how you treat them (like as in determining a risk-factor rating), and how often they will get inspected for continued maintenance, etc...
Generally in a dry climate, and indoors, I would not be as concerned about them, but if in a humid location, I might spend more time and planning on a strategy in keeping them in tip-top shape.
To get the best kind of connection and longevity, I might start by cleaning all the connector-points with wire brush to polish off any oxidation and get a nice bright surface, make sure the actual contact points are flat and have good surface area against each other, use some brake-and-parts cleaner or electrical contact cleaner to do final clean, and put some di-electric (electrically conductive) grease on the connections and tighten them down (some people go so far as to recommend specific torque specs based on bolt size, me I just tend to know for myself how much to torque to based on feel), coating the outside of them to seal them off from oxygen.
On outdoor connections, 'I think like the water', and imagine how water, moisture, or humidity could get to the connection, and build a plan to ensure that these elements cannot get near the connection-point (drip-loops on cables, etc). Also not being ignorant in making sure breakers, relay contacts, etc, are properly rated for outdoor-use if needed, and in outdoor-rated enclosures, is a good idea too.
Generally I see that amperage might play a role in how the connection endures over time. I had generally always seen that something like lower voltage and higher amperage (like 12v battery banks for example), would be more susceptible to oxidizing and corrosion than a higher voltage with lower amps would (like with 48v battery banks).
But using a di-electric conductive grease can help the connection be better quality (fills in the microscopic air-gaps between contact points better), helping current flow, and also providing a sealing barrier to oxygen which is bad for oxidation to build in between connection points.
This answer may be simplistic and general, but it depends to me on exact situation and I just kind of decide what the specific install scenario needs to make it robust and stand the test of time, based on what it will be subjected to, and how long I want it to last (and whether I expect to be around to inspect it periodically, or if I will deliver it to a customer and maybe never see it again).
I used to work on tractors and automobiles a lot in my last career, and often had to deal with wiring things that would be subjected to constant liberal water exposure, and learned to think like the water, moisture, and humidity, do what you need in the specific install to keep those elements away and isolated from the vulnerable points in the circuits.