If we were to observe daily life， we would most likely find such promises have reached epidemic proportions—property developers ensure that there‘re no jerry-built houses； sellers guarantee absolutely not to sell substandard goods； restaurant owners assure people that they never use gutter oil to cook food.

请问上面句子中的were to是“能够”的意思吗？为什么在这里可以用虚拟语气呢？是因为它表示“建议”吗？