Upon further examination, it genuinely falls under both categories. Economic factors are usually conducted by but are not limited to low socioeconomic households/individuals. As per the Cambridge textbook, "offenders view criminal activity as a way of gaining economic benefit", which would fit this question (the economic benefit being money for a holiday). Self-interest also applies since it is technically 'greedy' but that's a very subjective term and what quantifies materialistic desire is a bit vague.
I am pretty confident in saying they will permit both answers as it can be argued for both.