Are the benefits beneficial?
Constructing impressive buildings benefits more for visitors than local people.
This is another word that gets partly lost in translation. Lets look at some possible improvements.
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Benefit – verb
Constructing impressive buildings benefits visitors more than local people.
The verb benefit is transitive, no preposition. Notice the position of more in the comparison!
Beneficial – adjective
Constructing impressive buildings is more beneficial for visitors than for local people.
The adjective beneficial may be followed by a preposition phrase – usually beneficial + for (except “When attempting to lose weight it is more beneficial to exercise than to diet.”).
Without a comparative you might also write:
Constructing impressive buildings is beneficial.
Benefit – noun
The benefits to visitors of constructing impressive buildings are greater than the benefits to local people.
The noun benefit – when applied to people (visitors) – is followed by to.
When applied to things (constructing impressive buildings) it is followed by of.