Possibly. It seems like it.
“Happiness is when what you think, what you say, and what you do are in harmony.”
~Mahatma Gandhi
I agree with Gandhi here. Based on that, I would say that there are certainly more opportunities to be confused, misguided and compromised in your personal beliefs today simply because of the increased amount of stimuli around us 24/7/365 than, say, in 1890, or even 1960. We carry personal communication devices, we are online, many of us have radio or TV on in our homes more than 100 hours per week. There is no rest. This can’t help but influence the way we think. It makes us much different than those generations which came before us and the increased exposure increases the pressure to conform. The result is that we’re becoming a more homogeneous society, more alike with fewer differences between us, with less individuality, more of one mind. The growing lack of diversity in the way we think could be dangerous, especially if we are all convinced that unhappiness is the acceptable natural state of modern human beings. But down deep we are individuals, so this can’t help but cause an equally deep dissonance within us.
Many of us daily experience cognitive dissonance at work and our social lives where one must compromise oneself almost constantly in order to hold a job or maintain peace in a social group or among family members who accept dissonance as a normal way of life. Much of the programming on the TV, in my opinion, supports the false illusion that this is acceptable, that it’s the way things should be and always has been. I don’t accept this and documented history states otherwise. This behaviour has existed, but it was the unacceptable few who lived this way. Unless you were Machiavellian, you certainly teach your children that this was acceptable.
One must get control of one’s life. One way to do this is to get a good education in a field of endeavor you are genuinely interested in so that you will be attractive to employers in that field, or better yet, pursue that occupation or profession independently as self-employed. Then stay out of debt, so you don’t become a desperate wage slave that can barely keep your head above water. Staying out of debt will allow you the time and luxury of picking your employers wisely. Then pick your friends and associates wisely, and leave the rest behind. Be firm on these things and you will find it much easier to avoid these inconsistencies and the resultant mental stress and discomfort. You will also attract people who understand the importance of consonance and practice it as well.
What you describe in your question is not necessary happiness, but mere happy, pleasant moments. That is not happiness.