The squeaky wheel gets the grease.
This is because when the wheel is low on grease resulting friction creates a sound letting you know that if the parts are not greased soon, the friction will cause things to break (burning, corrosion, seizing, etc., depending on the mechanics we're referring to) and the wheel, along with it's adjoining parts, will not be able to work well, if at all.
Some wheels need to be greased more often, some can perform well for quite a while even while squeaking, some will not squeak at all because they are simply able to work with the grease they have, but wheels need grease in order to perform smoothly. The ones that need more grease are not necessarily of a lower quality than the ones that need less. Sometimes it's because they work longer hours or on rougher terrain, sometimes it's because they are a special type that performs better in certain situations but in order to make them special they need to be greased more often, sometimes it's simply that you have not been using good grease. Regardless, wheels need grease.
The squeaky wheel does not get the grease simply because it is begging for attention. In most cases, a wheel that squeaks too often without truly needing the grease, without doing sufficient work of being a wheel between oil breaks, would be replaced and left behind.
I only mention this as a reminder.
Don't grease a squeak just to stop the squeak. Do it with an eye on the entire machine. On how the mechanics all work together.
Take time to see if you are working the wheel too hard, or if you are greasing too often in hopes of keeping it from squeaking (which can cause the chemical degradation of your grease to quicken), or if you are not being careful about the terrain you're traversing. Not all wheels are built for rock climbing or snow. Sometimes we pull one on the back of another until we get to the proper environment. Sometimes we simply wait for the right weather.
I'm only mentioning this as a reminder.
Don't use "the squeaky wheel gets the grease" as a justification for being a squeaky wheel unnecessarily. And don't use a distaste for "the squeaky wheel gets the grease" as an excuse not to take time to help someone. Also, let's not use a fear of needing help keep us from squeaking, potentially causing us to break the mechanics of our machine unnecessarily.
The squeaky wheel gets the grease.
Because a properly greased wheel keeps everyone moving in their chosen direction.
Hugs, smiles, and love!!