[somenameforme]

Only if one uses circular logic when defining it, which is I find the MBA style definition of value to be mostly meaningless and also misleading, because people interpret it as they want. By contrast directly speaking of supply/demand encompasses everything quite well and eliminates any circular logic, let alone the need for such.

[sokoloff]

How would the demand curve avoid expressing anything the value the buyer receives (or at least perceives) from their transaction?

[somenameforme]

It doesn't. It simply makes clear that the reason is not 'value', as somebody might interpret it, but scarcity. If there were 100 million competent software engineers in the US, the value they add to companies wouldn't change, but their labor costs would - quite dramatically. In such a scenario coding and flipping burgers would offer relatively comparable wages.

Supply:demand makes the reason for this change completely clear, vague notions of poorly (and often circularly) defined 'value' do not.

[sokoloff]

Scarcity is reflected in the supply curve.

Value in the demand curve.

Where they intersect gives the market price.